# Accident 19990720009399A: Piper PA18150, Lamar, CO, July 20, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 20, 1999, 15:30 local time
- Place: Lamar, CO
- Damage: Substantial damage
- Operating rules: General operating rules (Part 91)
- Location: 38.0800° N, 102.6102° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=38.0800&lon=-102.6102&mi=10
- Aircraft: N400MA, registered now (https://openairdocs.org/aircraft/N400MA) (OpenAirDocs)
- Registry model: Piper PA-18-150 (registry code 7101828, https://openairdocs.org/model/piper-pa-18-150) (OpenAirDocs)
- Registry engine: Lycoming 0-320 series (registry code 41508, https://openairdocs.org/engine/lycoming-0-320-series) (OpenAirDocs)
- Reported make and model: PIPER PA18150
- Fatal injuries: 0
- NTSB investigation: [NTSB DEN99LA124](https://openairdocs.org/ntsb/DEN99LA124) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990720009399A

## Narrative

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

ON TAKEOFF, AIRCRAFT HAD BRAKE PROBLEMS. IN AN ATTEMPT TO ABORT TKOF, ACFT FLIPPED OVER. (-23)PILOT WHO IS ALSO A/C MECHANIC HAD JUST REPLACED THE RIGHT WING OF THE AIRCRAFT. A/C WAS BEING FLOWN FOR FIRST TIME AFTER MAINTENANCE. PILOT DEPARTED RUNWAY AND NOTICED THE A/C YAWED TO THE LEFT. PILOT APPLIED RIGHT RUDDER. PILOT THEN APPLIED RIGHT BRAKE TO IN AN ATTEMPT TO STOP THE LEFT YAW. PILOT THEN ATTEMPTED TO ABORT THE TAKEOFF BY REDUCING POWER. WHEN THE THROTTLE WAS RETARDED THE A/C NOSED OVER. THE A/C RECEIVED SUBSTANTIAL DAMAGE. THE PILOT RECEIVED MINOR INJURIES. INSPECTION OF THE LEFT BRAKE ASSEMBLY BY THE PILOT MECHANIC INDICATED THE LEFT BRAKE WAS LOCKED.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB DEN99LA124](https://openairdocs.org/ntsb/DEN99LA124), Jul 20, 1999: Piper PA-18-150 (N400MA), Lamar, CO, substantial damage. Probable cause: The left brake locked during takeoff roll for undetermined reasons.

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.