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ASN Wikibase Occurrence # 45918
Last updated: 30 April 2021
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Date:04-JUN-2001
Time:08:55
Type:Silhouette image of generic P28A model; specific model in this crash may look slightly different
Piper PA-28-180
Owner/operator:Aero Haven, Inc.
Registration: N5413S
MSN: 25-7105140
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Big Bear City, CA -   United States of America
Phase: Take off
Nature:Training
Departure airport:Big Bear City, CA (L35)
Destination airport:Big Bear City, CA (L35)
Investigating agency: NTSB
Narrative:
The student pilot lost control of the single engine airplane during the takeoff initial climb with a tailwind and collided with trees while descending in the crosswind turn. The student departed with an 8-knot tailwind. The UNICOM frequency was reported to be in operation; however, no one reported hearing the accident airplane request departure information or make a position report. According to a pilot witness, the airplane was unable to gain altitude after leaving ground effect and the nose pitched up and to the left, and began to "oscillate back and forth as if it was having difficulty in trying to climb." The witness added the airplane made a shallow left-hand turn and the nose began to pitch up, then the airplane "stalled and the aircraft went nose down." The student pilot was a paraplegic and had obtained approximately 74 total hours of flight time, of which approximately 25 hours were accumulated in the same make and model as the accident airplane. The student had accumulated approximately 6 hours of solo flight time prior to the accident flight. The aircraft utilized a rudder hand control, which allowed the pilot to operate the rudder pedals manually. The student had performed a demonstrated ability flight utilizing the hand control 5 days before the accident. A post accident examination of the wreckage revealed the propeller had sliced through 4-inch thick tree branches. The right magneto would not operate following the accident and it was noted that the breaker points would not open, oil and dirt were found in the magneto housing, and the magneto's drive was excessively loose. At the time of the last annual inspection, the engine's magneto timing was checked. A service bulletin issued for the affected magneto required an inspection of the magnetos every 500 hours. At the time of the accident, the magneto had accumulated a total time in service of 1,256.36 hours, and there was no entry indication the service bulletin had been complied with. No other anomalies were noted with the airplane and engine. The density altitude was computed to be 8,400 feet.



Probable Cause: the student pilot's selection of a takeoff runway conducive to a tailwind weather condition and his failure to maintain airspeed and his inadvertent stall during takeoff initial climb. Factors in the accident were the partial loss engine power resulting from the inoperative right magneto and the high density altitude weather condition.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20010613X01169&key=1

Location


Revision history:

Date/timeContributorUpdates
28-Oct-2008 00:45 ASN archive Added
21-Dec-2016 19:24 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
10-Dec-2017 11:25 ASN Update Bot Updated [Operator, Source, Narrative]

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