CEN12LA543

NTSB accident investigation · Cross David L Glasair III · Westcliffe, CO · August 7, 2012

Accident · Serious injuriesLimited investigationFinal report
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.