- Date
- August 7, 2012, 08:30 local (14:30 UTC)
- Place
- Westcliffe, CO
- Injuries
- 1 serious
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N71AJCross David L Glasair III
- Defining event
- Enroute-climb to cruise: Powerplant sys/comp malf/fail
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 9, 2013
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- Federal Aviation Administration
- FAA report
- 20120807017009A
- Case key
- 84676
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 loss of oil pressure due to the failure of an oil filter gasket, which resulted in a total loss of engine power.
Findings · 1
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
After leveling off at 12,000 feet mean sea level for a test flight, the pilot noticed that the oil temperature began to increase, and then the engine lost oil pressure. The engine then lost total power, and the pilot performed a forced landing in a field. An examination of the engine revealed that a gasket between the remote oil filter adapter and the "spin-on" filter mounting pad had failed, which resulted in a loss of oil. The owner reported that he had lubricated the gasket with a compound upon installation. It could not be determined whether the compound had degraded the gasket.
Factual narrative
On August 7, 2012, about 0830 mountain daylight time a kit-built Glasair III airplane, N71AJ, was substantially damaged during a forced landing near Westcliffe, Colorado. The private pilot was seriously injured. The airplane was registered to and operated by a private individual under the provisions of 14 Code of Federal Regulations Part 91, as a personal flight. Visual meteorological conditions prevailed for the local flight, which operated without a flight plan. The local test flight originated from the Silver West Airport (C08), Westcliffe, Colorado, about 0810. According to the owner, the accident flight was the airplane's first flight of a 40-hour test flight program. The pilot departed C08 and climbed to 12,000 feet. The pilot noticed that the oil temperature began to increase and then noted a loss of oil pressure. The engine stopped producing power and the pilot performed a forced landing to a field. The airplane sustained substantial damage to its fuselage. An examination of the engine revealed that a gasket between the remote oil filter adapter and the "spin-on" filter mounting pad had failed which resulted in a loss of oil. The owner reported that the gasket was lubricated with a compound upon installation. It could not be determined if the compound degraded the gasket.
Aircraft
- Registration
- N71AJ
- Reported as
- Cross David L Glasair III
- Category
- Airplane, amateur-built
- Serial number
- 3314
- Airframe hours
- 2
- Engine
- Lycoming IO-540-K1E5, 300 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Special, Experimental (Special)
- Departed
- C08 · Westcliffe, CO
- Destination
- C08 · Westcliffe, CO
- Airport
- C08 · Silver West
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
- 69
- Injuries
- Serious
- Certificates
- Commercial, Flight instructor
- Airplane ratings
- Multi-engine land, Single-engine sea, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, With waivers/limitations
- Seat
- Left
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 280° at 8 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 82 °F, dew point 46 °F
- Altimeter
- 30.20 inHg
- Observed at
- KPUB, 44 nm away
Docket · 4
The files NTSB released with the investigation on March 20, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.0 MB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.