GAA18CA207

NTSB accident investigation · Piper PA34 · San Diego, CA · April 10, 2018

Accident · No injuriesData collectionFinal report
Date
April 10, 2018, 14:00 local (21:00 UTC)
Place
San Diego, CA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4567TPiper PA34
Defining event
Landing: Landing gear not configured
Weather
Visual (VMC) · Day
Status
Completed · report July 5, 2018
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20180410000729I
Case key
97012

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot receiving instruction and flight instructor’s failure to properly configure the landing gear before landing, which resulted in landing with the landing gear retracted.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Landing gear systemAircraft › Aircraft systems · Not used/operatedPiper PA-34-200: 1 caseAll aircraft: 113 casesProbable cause
Action: forgotten action/omissionPersonnel issues › Action/decision · Instructor/check pilotPiper PA-34-200: 4 casesAll aircraft: 440 casesProbable cause
Action: forgotten action/omissionPersonnel issues › Action/decision · Student/instructed pilotPiper PA-34-200: 4 casesAll aircraft: 440 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The flight instructor reported that the pilot receiving instruction performed a simulated single-engine approach. He wanted to be able to communicate more easily with the pilot, so he set the simulated failed engine to 15 inches of mercury manifold pressure since the landing gear warning horn will sound if the manifold pressure is set below 14 inches of mercury. He added that he did not verify the gear was down and locked with the three green extended lights illuminated. He reported that, just before landing, he heard the landing gear warning horn but attributed it to the stall warning horn. The pilot receiving instruction reported that he did not recall hearing any audible alarm. The airplane landed with the gear retracted. The airplane sustained substantial damage to both the wings. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Factual narrative

The flight instructor reported, while the pilot receiving instruction performed a simulated single-engine approach, he wanted to be able to communicate more easily with the pilot, so he set the simulated failed engine to 15" of manifold pressure; the landing gear warning horn will sound if the manifold pressure is set below 14". He added that he did not verify the gear was down and locked with the three green extended lights illuminated. He reported that, just before landing, he heard the landing gear warning horn, but attributed it to the stall warning horn. The pilot receiving instruction reported that he did not recall hearing any audible alarm. The airplane landed with the gear retracted. The airplane sustained substantial damage to the engines. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N4567T
Reported as
Piper PA34 (200)
Category
Airplane
Serial number
34-7250136
Built
1972
Airframe hours
7,151
Engines
Lycoming LIO-360-C1E6, 200 horsepower, reciprocatingLycoming IO-360-C1E6, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · March 20, 2018
Departed
MYF · San Diego, CA
Destination
SDM · San Diego, CA
Airport
SDM · Brown Field Muni, runway 26R, 7,972 × 150 ft, concrete
Equipment
Stall warning system

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
56
Injuries
None
Certificates
Airline transport, Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
April 11, 2016
Seat
Right
Flight hours
5,239 total · 833 in this make and model · 5,065 as pilot in command · 34 in the last 90 days · 13 in the last 30 days · 2 in the last 24 hours
Role
Pilot
Age
44
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
April 15, 2017
Seat
Left
Flight hours
409 total · 45 in the last 90 days · 20 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 45 °F
Altimeter
29.98 inHg
Observed at
KSDM, 1 nm away

Docket · 2

The files NTSB released with the investigation on June 12, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.2 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.