# NTSB Accident LAX90FA111
> **AMERICAN AA-1** · 1990-03-10 · BOREGO SPRINGS, CA, USA · SERS
## Event
- **NTSB number:** LAX90FA111
- **Event ID:** 20001212X22732
- **Type:** Accident
- **Date:** 1990-03-10
- **Location:** BOREGO SPRINGS, CA, USA
- **Coordinates:** 33.169952, -116.270011
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 2
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** AMERICAN
- **Model:** AA-1
- **Registration:** N5655L
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

IMPROPER IN-FLIGHT PLANNING/DECISION BY THE PILOT, AND HIS FAILURE TO MAINTAIN SUFFICIENT AIRSPEED AND ALTITUDE, WHICH RESULTED IN A STALL/MUSH INTO RISING MOUNTAINOUS TERRAIN.  FACTORS RELATED TO THE ACCIDENT WERE:  THE TERRAIN AND WEATHER CONDITIONS, AND FAILURE OF THE ENGINE TO PROVIDE FULL POWER, DUE TO IMPROPER MAINTENANCE AND SUBSEQUENT WEAR OF THE CAM LOBES & TAPPETS.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX90FA111) · AI Analytics · CC0 1.0*