MIA97LA064

NTSB accident investigation · Cessna 152 · Boca Raton, FL · January 16, 1997

Accident · Serious injuriesLimited investigationFinal report
Date
January 16, 1997, 09:20 local (14:20 UTC)
Place
Boca Raton, FL
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N69219Cessna 152
Weather
Visual (VMC) · Day
Status
Completed · report August 25, 1997
Report
Approved by Office Director
FAA report
19970116011999A
Case key
38204

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

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.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(total) - nonmechanicalApproach - vfr pattern - final approach
Fuel system,cap - deterioratedCause
Maintenance,inspection - inadequateCompany maintenance personnelCause
Fuel system,cap - leakCause
Fuel system - contamination,waterCause
Forced landingEmergency descent/landing
In flight collision with objectLanding - flare/touchdown
Object - tree(s)

Analysis

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.

Factual narrative

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.

Aircraft

Registration
N69219
Reported as
Cessna 152
Category
Airplane
Serial number
15285350
Engine
Lycoming O-235-L2C, 118 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Boca Airport, Inc.
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
100 hour · December 30, 1996 · 21 hours before
Departed
BCT

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
52
Certificate
Student
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
350 total · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 12 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 68 °F
Altimeter
29.00 inHg
Observed at
PBI, 18 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.