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NYC07LA166 · Piper PA-23-160

12 Jul 2007 · Enterprise, AL, United States

Piper PA-23-160 · Accident: undershoot on approach

From Enterprise Municipal Airport (EDN) to Enterprise Municipal Airport (EDN)

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Event

NTSB case
NYC07LA166
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
0 · all aircraft and ground
Ground fatalities
Unknown
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

Piper PA-23-160

Aircraft type
Piper PA-23
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N4043P
Onboard fatalities
Unknown
Route
From Enterprise Municipal Airport (EDN), Enterprise, ALTo Enterprise Municipal Airport (EDN), Enterprise, AL
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Approach · VFR pattern final
First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Undershoot
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Substantial

Cause areas

  • Designated examiner › In-flight planning/decision, improper
  • Designated examiner › Remedial action, inadequate

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

A Federal-Aviation-Administration-designated (FAA) pilot examiner was giving a private pilot checkride for the purpose of the private pilot obtaining a commercial pilot certificate with a rating for airplane multi-engine land. Toward the end of the checkride, the private pilot had completed single-engine maneuvers, including a simulated single-engine instrument approach to a full-stop landing. The private pilot believed that the only remaining maneuvers to be completed were a short-field landing and emergency descent. During the final approach for a short-field landing, the examiner simulated a right engine failure. The private pilot feathered the right propeller, but thought that the examiner may have "bumped it out of feather and set it to zero thrust." Shortly thereafter, the private pilot realized that the airplane was not going to reach the runway, and attempted a go-around. When power was increased on both engines, the airplane started to turn left. The private pilot then noticed that the left propeller speed was decreasing. The examiner took control of the airplane, reduced power on both engines, and landed in a grass field. Examination of the airplane did not reveal any preimpact mechanical malfunctions, and the left propeller was observed in the feathered position. Both propeller controls were found mid-range, with the left propeller control trailing the right propeller control by approximately 1 inch. The FAA Commercial Pilot Practical Test Standards contained instructions for the applicant to actually feather a propeller, but it specified that the procedure be done at altitude. All other references pertained to simulating propeller feathering. Further review of the test standards revealed that, "The examiner is expected to use good judgment in the performance of simulated emergency procedures. The use of the safest means for simulation is expected. Consideration must be given to local conditions, both meteorological and topographical, at the time of the test, as well as the applicant's workload, and the condition of the aircraft used."

Probable cause

The designated examiner's improper decision to simulate an engine failure on short final approach, in conjunction with a short-field landing maneuver, and his inadequate remedial action. Contributing to the accident was the private pilot's inadvertent feathering of the left propeller.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record NYC07LA166
Event ID
20070806X01111
Case number
NYC07LA166
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: 4b50ac1d25772c93e932799ae3f3bd0f2cc5e6465194c86c5a10af0af077cb46; retrieved 2026-09-21T18:27:13.264Z.