# Incident 19950129005649I: Piper PA31310, Teterboro, NJ, January 29, 1995

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: January 29, 1995, 09:54 local time
- Place: Teterboro, NJ
- Airport: Teterboro
- Damage: Minor damage
- Phase of flight: Roll-Out (Fixed Wing)
- Operating rules: General operating rules (Part 91)
- Location: 40.8501° N, 74.0608° W: Placed by OpenAirDocs at TETERBORO (TEB), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.8501&lon=-74.0608&mi=10
- Aircraft: N9230Y (not matched to a registry record)
- Reported make and model: PIPER PA31310
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 11,000 total, 15 in this make and model
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19950129005649I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

NARRATIVE: AFTER LANDING RUNWAY 01 AT TEB AIRPORT AND DECELERATING, THE LEFT MAIN LANDING GEAR COLLAPSED AND THE AIRCRAFT VEERED TO THE LEFT, WENT OFF THE RUNWAY, AND CAME TO A STOP ON THE GRASSY AREA. IMPACT DAMAGE TO THE LEFT WING TIP, LOWER WING SURFACE, LEFT AILERON, LEFT TRAILING EDGE FLAP, LEFT WHEEL WELL GEAR DOOR, AND LEFT ENGINE PROPELLER BLADES WERE SUSTAINED. ON MARCH 1, 1995, A LANDING GEAR SYSTEM FUNCTIONAL CHECK WAS CONDUCTED. IT CONSISTED OF AN ANTI-RETRACTION SYSTEM CHECK AND GEAR RETRACTION AND EXTENSION. THE ANTI-RETRACTION CHECK WAS FOUND OPERATIONAL. HOWEVER, THE RETRACTION AND EXTENSION CHECK SHOWED THAT THE LEFT GEAR OPERATED NORMALLY IN THE DOWN AND LOCK POSITION BUT ABNORMALLY IN THE UP AND LOCK POSITION. THIS WAS DUE TO BINDING OF THE UPLOCK HOOK MECHANISM RESULTING FROM DIRT, CORROSION AND LACK OF LUBRICATION. THIS CONTAMINATED CONDITION WAS ALSO EVIDENT IN THE DOWNLOCK MECHANISM, THE LEFT GEAR DOWN LOCK INDICATION SWITCH (FOR GREEN LIGHT) WAS FOUND OUT OF ADJUSTMENT ALLOWING THE INDICATION LIGHT TO STAY GREEN EVEN THOUGH THE GEAR MAY NOT BE DOWN AND LOCKED. AS A RESULT OF THIS PROBABILITY AND THE DEGRADED CONDITION OF THE LANDING GEAR LOCKING MECHANISMS, THE POSSIBILITY EXISTED THAT THE LEFT GEAR MAY NOT HAVE BEEN DOWN AND LOCKED AT THE TIME OF THE INCIDENT. THEREFORE, THIS OFFICE CONSIDERS THIS INCIDENT CLOSED.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.