19971115032989A

Accident · Destroyed

FAA accident report · Mooney M20 · Big Bear, CA · November 15, 1997

Date
November 15, 1997 · 06:59 local
Place
Big Bear, CA
Airport
Big Bear City Airport
Phase of flight
Descent
Operating rules
General operating rules (Part 91)
Damage
Destroyed
Aircraft
N5231B
NTSB investigation
NTSBLAX98FA039
Reported as
Mooney M20
People aboard
2
Fatal injuries
2
Pilot’s flight hours
96 total92 in this make and model96 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry 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.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

VFR pilot departed into IMC. Lost control in steer turn exiting. Low clouds(.4) the pilot performed a preflight inspection and taxied in an easterly direction toward an area where witnesses indicated the rising sun and the blue sky were visible. The pilot elected to takeoff on runway 26 toward an area where a 200-foot overcast ceiling existed and the visibility was 0.75 mile. The airplane climbed into the clouds and within 60 seconds descended into a mountainside 0.8 miles from the airport while in a 90-degree left bank turn. An examination of the wreckage revealed the presence of oil leakage in an aft direction on the belly and on the engine's exterior. A puddle of oil was found in the pilot's hangar below the area where the engine had been located. No evidence of oil starvation, overheat distress signatures, or a power loss was found during the examination. The attitude indicator had a history of precession. The baggage compartment door and the pilot's lap belt were found unlatched. No maintenance logs were located. The accident occurred 10 days after the pilot was issued a private pilot certificate. The pilot's former flight instructor (CFI) reported that the pilot "tinkered" with his engine in an effort at stopping the leakage. The CFI characterized the pilot as having an aggressive personality.

As the FAA filed it

VFR PILOT DEPARTED INTO IMC. LOST CONTROL IN STEER TURN EXITING. LOW CLOUDS(.4) THE PILOT PERFORMED A PREFLIGHT INSPECTION AND TAXIED IN AN EASTERLY DIRECTION TOWARD AN AREA WHERE WITNESSES INDICATED THE RISING SUN AND THE BLUE SKY WERE VISIBLE. THE PILOT ELECTED TO TAKEOFF ON RUNWAY 26 TOWARD AN AREA WHERE A 200-FOOT OVERCAST CEILING EXISTED AND THE VISIBILITY WAS 0.75 MILE. THE AIRPLANE CLIMBED INTO THE CLOUDS AND WITHIN 60 SECONDS DESCENDED INTO A MOUNTAINSIDE 0.8 MILES FROM THE AIRPORT WHILE IN A 90-DEGREE LEFT BANK TURN. AN EXAMINATION OF THE WRECKAGE REVEALED THE PRESENCE OF OIL LEAKAGE IN AN AFT DIRECTION ON THE BELLY AND ON THE ENGINE'S EXTERIOR. A PUDDLE OF OIL WAS FOUND IN THE PILOT'S HANGAR BELOW THE AREA WHERE THE ENGINE HAD BEEN LOCATED. NO EVIDENCE OF OIL STARVATION, OVERHEAT DISTRESS SIGNATURES, OR A POWER LOSS WAS FOUND DURING THE EXAMINATION. THE ATTITUDE INDICATOR HAD A HISTORY OF PRECESSION. THE BAGGAGE COMPARTMENT DOOR AND THE PILOT'S LAP BELT WERE FOUND UNLATCHED. NO MAINTENANCE LOGS WERE LOCATED. THE ACCIDENT OCCURRED 10 DAYS AFTER THE PILOT WAS ISSUED A PRIVATE PILOT CERTIFICATE. THE PILOT'S FORMER FLIGHT INSTRUCTOR (CFI) REPORTED THAT THE PILOT "TINKERED" WITH HIS ENGINE IN AN EFFORT AT STOPPING THE LEAKAGE. THE CFI CHARACTERIZED THE PILOT AS HAVING AN AGGRESSIVE PERSONALITY.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.