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NTSB Identification: MIA97LA064. The docket is stored in the (offline) NTSB Imaging System.

Accident occurred Thursday, January 16, 1997 at BOCA RATON, FL

Aircraft: Cessna 152, registration: N69219

Injuries: 1 Serious



Event: 20001208X07332 Status: Final Report Approved On Monday, August 25, 1997



NTSB Preliminary Narrative (6120.19A)



On January 16, 1997, about 0920 eastern standard time, a Cessna 152, N69219, registered to Boca Airport, Inc., collided with trees while

making a forced landing following loss of engine power at Boca Raton Airport, Boca Raton, Florida, while on a Title 14 CFR Part 91 instructional

flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The aircraft received substantial damage and the

student-rated pilot received serious injury. The flight originated from Boca Raton, Florida, the same day, about 0825.



The pilot stated she performed a normal preflight inspection and drained the fuel tank sumps and fuel strainer. She did not observe any water

in the drained fuel. After takeoff she performed maneuvers west of Boca Raton for about 45 minutes, before returning to the airport for takeoffs

and landings. On the second approach to landing she pushed in the throttle to increase engine power while at 500 feet on final approach. The

engine did not respond and the propeller stopped turning shortly after this. She was unable to reach the runway and made a forced landing in a

wooded area short of the runway.



Postcrash examination of the aircraft by an FAA inspector showed each fuel tank was about three quarters full of 100LL fuel. Uncontaminated

fuel was drained from each fuel tank sump. The fuel strainer and carburetor bowl was full of water. The right fuel cap was found to allow

water to leak into it when poured over the cap. The engine fuel system was purged of water and the engine was started and operated with no

evidence of mechanical malfunction. The aircraft had been fueled on January 11, 1997, and did not fly until the accident flight. During the

period between the fueling and the accident flight the aircraft was parked on the ramp. On several of the days it rained. The fueling source was

found to be uncontaminated and other aircraft fueled from the source did not contain water contamination.



NTSB Final Narrative (6120.4)



The pilot stated that during preflight inspection she did not see any water in fuel samples she drew from the wing sump drains and fuel strainer.

After 55 minutes of flight, while on final approach, the engine quit. The pilot made a forced landing in a wooded area. Postcrash examination

showed that the fuel strainer and carburetor bowl were full of water. The right fuel cap was found to be leaking. The engine operated normally

after removal of the water from the fuel system. The fueling source was free of water and other aircraft fueled from this source did not contain

water. The aircraft was refueled 5 days before the accident and did not fly until the accident flight. Between the last refueling and the accident

flight the aircraft sat on the ramp. On several of the days it rained. The aircraft received a 100-hour inspection, 17 days and 21 flight hours

before the accident.



NTSB Probable Cause Narrative



Inadequate inspection of the fuel caps by company maintenance personnel resulting in a cap with a deteriorated seal being allowed to continue

in service. This allowed water to leak into the fuel tank which resulted in loss of engine power due to water ingestion.



Occurrences and Sequence of Events

Occurrence: 1, LOSS OF ENGINE POWER(TOTAL) - NONMECHANICAL

Phase of Operation: APPROACH - VFR PATTERN - FINAL APPROACH



Sequence of Events for Occurrence Number: 1

1 ( Cause ) FUEL SYSTEM, CAP / DETERIORATED / (0)

2 ( Cause ) MAINTENANCE, INSPECTION / INADEQUATE / COMPANY MAINTENANCE PERSONNEL

3 ( Cause ) FUEL SYSTEM, CAP / LEAK / (0)

4 ( Cause ) FUEL SYSTEM / CONTAMINATION, WATER / (0)



Occurrence: 2, FORCED LANDING

Phase of Operation: EMERGENCY DESCENT/LANDING



Occurrence: 3, IN FLIGHT COLLISION WITH OBJECT

Phase of Operation: LANDING - FLARE/TOUCHDOWN



Sequence of Events for Occurrence Number: 3

1 (Finding) OBJECT / TREE(S) / (0)


 

 

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