Phase 1 · Module 1-1

PAVE and ADM

This is the first module of your ground school, and it is not about the airplane. It is about the decisions that put an airplane in the air, and the decisions that keep it there. Everything else you will learn — aerodynamics, weather, regulations, systems — gets used through the lens this module builds. That is why it comes first.

Flying is not dangerous the way people imagine. The machine almost never fails on its own. What fails is a chain of small human decisions, each one reasonable-looking at the time. The tools in this module exist to break that chain early, on the ground, while breaking it is still cheap.

PAVE: the four categories

PAVE is the checklist that sorts everything that can hurt a flight into four categories, walked before every flight: Pilot, Aircraft, enVironment, External pressures Chapter 2, Aeronautical Decision-Making — The PAVE Checklist. It is the first mnemonic of your training and the one you will use the longest — every preflight brief in this program starts with it.

Pilot. Are you fit and qualified for this flight — not flights in general, this one, today, in these conditions?

Aircraft. Can this airplane, as equipped and loaded today, do this mission? Notice the word is mission, not legal. An airplane can be perfectly airworthy — inspections current, every instrument working — and still be the wrong airplane for today's mission.

enVironment. Weather, terrain, route, obstructions, airports, and airspace — for the specific flight planned. Not "is it nice out," but "what does the whole route look like for the whole flight?"

External pressures. Everything pushing on the decision from outside the cockpit: a party waiting at the destination, the passenger who took time off work, the rental money already spent, the simple wish not to look timid. This is the category pilots are least honest about, and the one that kills the most careful-looking planners. The standard defense is an out planned before takeoff: a firm alternate, a backup plan the passengers heard about in advance. Pressure shrinks when the alternative already exists.

PAVE is also a regulation wearing a friendlier name. 14 CFR 91.103 opens: "Each pilot in command shall, before beginning a flight, become familiar with all available information concerning that flight" § 91.103 Preflight action. All available information — the weather you did not want to read twice included. The checklist is how you satisfy the rule on purpose; Module 2-1 works the rule line by line when you plan your first cross-country.

The flight of N36402

Now watch all four categories fail on one real flight, with real people on it. Every module in this program is anchored to a flight like this, told the way we tell all of them: no blame, only mercy. The pilot made decisions we are all capable of making. That is exactly why we study him.

On December 19, 2015, a private pilot departed Reid-Hillview Airport in San Jose in a turbocharged Piper Lance, bound for Henderson, Nevada. His wife and their three children were aboard. They were traveling for vacation, and a surprise party was waiting in Henderson that evening.

He was a careful-looking planner. He filed a VFR flight plan. He pulled a weather briefing the night before, and another one at 6:53 the next morning. That morning briefing carried AIRMETs active along his route for IFR conditions, mountain obscuration, and moderate icing. A series of winter storms was crossing his path. He had 269.5 flying hours. He held no instrument rating, and in his whole logbook there were only 0.8 hours of actual instrument time — two training flights, almost two years before. The airplane carried oxygen equipment with three cannulas for the five people aboard.

He departed anyway, at 2:35 in the afternoon.

For the next hour he did what pilots do when the weather is winning and they have not admitted it yet. He climbed to stay above the rising cloud tops — 15,500 feet, then 16,500, then 17,500. He deviated south around precipitation. Other pilots on the frequency were reporting tops at 18,000, then 21,000 feet — higher than he had any legal way to chase: Class A airspace began at 18,000 feet, and for more than half the flight he was already at altitudes where all five occupants needed oxygen he did not carry. The sun was an hour from setting. Ahead of him, a band of rain stretched directly across his track.

About 3:50 pm, the controller offered him an IFR clearance to Henderson. He took it. He was not rated to fly it, and by then he was likely already in or near the clouds. About four minutes later, while turning and reconfiguring for a clearance he had never been trained to fly, he lost control of the airplane. He transmitted "mayday" twice. In the spiral that followed, the loads on the airframe exceeded what any airplane is built for, and it broke up in flight near Bakersfield. All five aboard were killed.

The NTSB's probable cause names the decision to conduct and continue the flight into forecast instrument conditions, and the decision to accept that clearance. Then it adds one quiet sentence: "Contributing to the accident was the pilot's self-induced pressure to arrive at the destination for a party that night." The full report is here: In-flight breakup near Bakersfield, California, December 19, 2015 — Piper PA-32RT-300T, N36402.

Hold on to that phrase — self-induced. Nobody in that family would have chosen the flight over the party. The pressure came from inside, the way it always does. This module is about noticing it there.

The AOPA Air Safety Institute reconstructed this flight — the radar track, the controller's voice, the weather as the pilot saw it. Watch it after you read the chain below; it lands differently once you know where every link was breakable.

Where the chain could have been broken

An accident is never one decision. It is a chain, and every link is a place where someone could have broken it. Here is this one, walked link by link. Each link is marked with the letter of the PAVE category — the four you just learned — that was speaking at that moment.

Notice something about that chain: the four ground links come first, and they are the cheap ones. That ordering is not an accident of this story. It is the whole argument for PAVE — the checklist runs on the ground because the ground is where the chain breaks cheap.

The pilot check: IMSAFE

The deep look at PAVE's P is its own mnemonic: IMSAFE — Illness, Medication, Stress, Alcohol, Fatigue, Emotion (some FAA materials use Eating for the E; either is accepted here) Chapter 2 — Mitigating Risk (the IMSAFE checklist). Run it before every flight, not just when you feel bad. It is a go/no-go decision about you — and you are the one who makes it. A medical certificate says a doctor found you fit on an afternoon months ago. Only you know about last night's sleep and this morning's argument.

Two of the letters carry hard numbers, because the FAA wrote them into regulation. Alcohol: 14 CFR 91.17 forbids acting as a crewmember within 8 hours of consuming any alcohol, while under the influence, or with a blood or breath alcohol concentration of 0.04 or greater § 91.17 Alcohol or drugs. Treat the 8 hours as a floor, not a target — a hangover is impairment even when the clock and the number both pass. Medication: 14 CFR 61.53 grounds you while taking any medication or treatment that leaves you unable to meet your medical certificate's requirements § 61.53 Prohibition on operations during medical deficiency. For over-the-counter drugs the FAA's guidance is concrete: if the label warns about drowsiness or operating machinery, wait at least five maximal dosing intervals after the last dose — and when in doubt, ask an aviation medical examiner. Modules 1-3 and 1-8 take both rules further.

Hazard, risk, and the tools for judging them

A hazard is a condition or an object: the fog on the pass, the soft grass runway, the party on the calendar. Risk is how bad and how likely the harm from that hazard is on this flight Chapter 3, Identifying Hazards and Associated Risks — Introduction. They are not the same thing, and the difference matters: you cannot remove most hazards, but you decide how much risk each one is allowed to put on your flight. Fog on the pass is a fact about the mountains. Flying toward it without an instrument rating was a decision about risk.

Aeronautical decision making (ADM) is the FAA's name for doing this on purpose: a systematic approach to finding hazards, judging their risk, and choosing the safest course of action Chapter 2, Aeronautical Decision-Making — Introduction. Three tools give it shape:

• A risk assessment matrix rates each risk on two axes — how likely the harm is, and how severe it would be — and the combination tells you whether the flight changes or cancels Chapter 4, Assessing Risk — Using a Risk Assessment Matrix.
• The DECIDE model works a problem in six steps: Detect, Estimate, Choose, Identify, Do, Evaluate Chapter 2 — The DECIDE Model.
• The 3P loop runs continuously in flight: Perceive the hazard, Process its risk, Perform the mitigation — then perceive again Chapter 8, Aeronautical Decision-Making in Flight — the 3P Model. It never finishes.

That loop is why the go/no-go decision is not made once. On the ground it is go/no-go; in the air the same question is called continue/divert, and it gets re-asked against the same PAVE categories for as long as the flight lasts. N36402's pilot answered it wrong perhaps a dozen times in his last hour — but he was asked it a dozen times. The offer to divert never stopped being open.

Personal minimums are the guardrail for both versions of the question: limits you set on the ground, in calm conditions, stricter than the regulations — and never renegotiated in the air Chapter 2, Personal Minimums. The regulations are the same for a 20,000-hour test pilot and for you. Personal minimums are yours: honest numbers for wind, visibility, and ceiling that get to say "no" on your behalf when the pressure is on. Later in Phase 1 you will write yours down, and your instructor will sign them with you.

The five hazardous attitudes

The FAA names five thought patterns that kill pilots, and gives each one an antidote — a short phrase you say to yourself, out loud if needed, when you catch the attitude talking Chapter 2 — Hazardous Attitudes and Antidotes. We carry the five with the handle RAIIM — Resignation, Anti-authority, Impulsivity, Invulnerability, Macho — so the list comes back as one word instead of five strays:

The method is recognition first: notice the hazardous thought, name it, say the antidote. The antidote is useless while you still believe the thought is sound — which is why recognizing it is the intervention.

Look back at the accident with this table in hand. Get-there-itis runs on invulnerability: it won't happen to me, not with my family aboard. Continuing into conditions beyond his training is macho's territory. And accepting a clearance he could not fly, rather than saying the hard sentence — that has the shape of resignation, options narrowing until the quiet wrong one looked like the only one. Three of the five attitudes, one flight.

The traps your own mind sets

Two biases deserve their own names, because you will meet them on your first solo cross-country Chapter 6, Threat and Error Management — Expectation Bias:

Confirmation bias is hunting only for information that supports the decision you have already made — reading the one good forecast twice and the AIRMET once. The counter is deliberate: go looking for the evidence that says you are wrong, and give it the louder voice.

Expectation bias is hearing or seeing what you expected instead of what actually happened. The classic case is reading back the clearance you expected rather than the one the controller issued. The counter is to treat every readback and every gauge check as a real question, not a formality.

Fly the airplane first

When anything goes wrong, task priority is fixed: aviate, navigate, communicate — in that order Chapter 18, Emergency Procedures — airplane control has priority. Fly the airplane first, always. Know where you are and where you are going second. Talk third. The order exists because its violations are written through the accident record: pilots who stopped flying while they troubleshot, navigated, or talked.

Situational awareness is the companion skill: an accurate picture of what is happening now and what happens next Chapter 2 — Situational Awareness. Its two main killers are distraction and fixation — attention pulled away, or attention locked on one thing while the rest of the flight moves on. N36402's last minutes were both at once: head down in an unfamiliar procedure while the airplane rolled away from wings-level.

That discipline extends to automation. An autopilot or a glass display is a resource to manage, not a substitute for flying: state what the automation is doing, and revert to hand-flying the moment it surprises you Appendix 10 — Avionics/Flight Automation.

Using everything you have

Single-pilot resource management (SRM) is the habit of using everything available to a pilot flying alone: the airplane's equipment, ATC, charts, passengers who can hold a flashlight or watch for traffic, and your own planning Chapter 2 — Crew Resource Management (CRM) and Single-Pilot Resource Management. Crew resource management (CRM) is the same discipline when more than one crewmember shares the flight deck. You will fly alone soon; SRM is how a single pilot stops being a lonely one. Remember the controller in the accident story, reporting precipitation, relaying tops, offering options. He was a resource the whole time.

The organized version is the 5P check: at set decision points in a flight — before takeoff, at cruise checks, before descent, before the approach — ask about the Plan, the Plane, the Pilot, the Passengers, and the Programming Chapter 2 — The 5 Ps Check. Five questions, thirty seconds, and the continue/divert decision gets made on purpose instead of by drift.

Your study guide and quiz

Everything above compresses to a one-page habit: PAVE before every flight, IMSAFE on yourself, an out planned for every pressure, minimums that were decided when you were calm, and — when it goes wrong — aviate, navigate, communicate.

Study guide — Module 1-1 (PDF)

The quiz below touches every Point in this module. Written answers are part of it from the start: if you can write it, you can probably say it — and the checkride oral is a conversation, not a multiple-choice test.