- Date
- July 31, 1990, 11:15 local (16:15 UTC)
- Place
- Alvord, TX
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N704FSCessna 150M
- Weather
- Visual (VMC) · Day
- Status
- Completed · report December 14, 1992
- Report
- Approved by Office Director
- FAA report
- 19900731029419A
- Case key
- 23164
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The failure of the engine to develop full rated power for unknown reasons.
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.
Analysis
At approx 200 feet AGL, upon completion of a practice forced landing procedure, carburetor heat was de-selected, full throttle applied and the flap setting reduced from 40 deg to 20 deg. According to the CFI, the engine did not develop full power with the RPM observed to be 2100 vice 2700 RPM at rated power. The airplane continued on the same heading, crossed over a wooded area barely clearing the trees, and settled in a nose-high, controlled attitude, into the trees followed by ground contact. Examination at the crash site revealed that the carburetor heat valve operated normally, the engine spark plugs and exhaust stacks were free from major deposits and that the outboard tips of the propeller blades were bent opposite to the direction of rotation. A four inch diameter oak limb had been slashed by the propeller.
Aircraft
- Registration
- N704FS
- Reported as
- Cessna 150M
- Category
- Airplane
- Serial number
- 15078581
- Airframe hours
- 1,971
- Engine
- Continental O-200A, 100 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Registered owner
- Patrick R. Johnson
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · June 17, 1990 · 109 hours before
- Departed
- 8F7 · Decatur, TX
- Destination
- 0F2 · Bowie, TX
- Airport
- NONE
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
- 33
- Certificates
- Flight instructor, Commercial
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Flight hours
- 850 total · 790 in this make and model · 750 as pilot in command · 100 in the last 90 days · 30 in the last 30 days · 3 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 50° at 10 knots
- Visibility
- 12 statute miles
- Lowest ceiling
- None
- Temperature
- 81 °F, dew point 68 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.