- Date
- August 9, 1990, 10:50 local (17:50 UTC)
- Place
- Hayward, CA
- Injuries
- 1 serious
- Damage
- Destroyed
- Phase of flight
- Enroute
- Aircraft
- N13NHConvair L-13A
- Weather
- Visual (VMC) · Day
- Status
- Completed · report December 30, 1992
- Report
- Approved by Office Director
- FAA report
- 19900809031779A
- Case key
- 26567
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
Absence of a oil system fitting cap.
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
Pilot of the restored military observation aircraft expereinced a loss of engine power and made a precautionary landing at a local high school. The aircraft collided with a telephone wire and was subsequently destroyed. The pilot stated he had a loss of engine oil with burning engine oil that filled the cabin with smoke. A steel 'an' fitting cap used to shut off the flow of engine oil from the engine oil pan was missing. A major engine overhaul was accomplished about 25 hours prior to the accident.
Aircraft
- Registration
- N13NH
- Reported as
- Convair L-13A
- Category
- Airplane
- Serial number
- 47-276
- Engine
- Franklin O-425-9, 275 horsepower, reciprocating
- Damage
- Destroyed
- Flight
- Positioning · Part 91
- Operator
- Noel T. Hops
- Registered owner
- Monica A. Hops
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Annual · February 9, 1990 · 10 hours before
- Departed
- LVK · Livermore, CA
- Destination
- OAK · Oakland, CA
- Airport
- HWD · Hayward
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
- 58
- Certificates
- Airline transport, Flight instructor
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 8,025 total · 25 in this make and model · 7,692 as pilot in command
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 300° at 6 knots
- Visibility
- 20 statute miles
- Lowest ceiling
- 10,000 ft broken
- Altimeter
- 29.00 inHg
- Observed at
- HWD, 2 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.