FTW96LA402

NTSB accident investigation · Cessna TR182 · Telluride, CO · August 24, 1996

Accident · No injuriesLimited investigationFinal report
Date
August 23, 1996, 18:40 local (Aug 24, 1996, 00:40 UTC)
Place
Telluride, CO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N757QTCessna TR182
Weather
Visual (VMC) · Day
Status
Completed · report February 1, 1997
Report
Approved by Office Director
FAA report
19960823031399A
Case key
19990

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

failure of the generator control unit (GCU), which resulted in a total electrical failure and failure of the main landing gear to lock in place.

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.

Airframe/component/system failure/malfunctionApproach - vfr pattern - final approach
Gear extension - initiatedPilot in command
Electrical system - failure,totalCause
Gear collapsedLanding

Analysis

As the pilot lowered the landing gear, there was a total electrical failure. He said he could not recall if he observed a GEAR DOWN AND LOCKED indication. He attempted to reset the alternator/voltage regulator circuit breaker, but to no avail. During the landing, the main landing gear collapsed, but the nose landing gear remained down and locked. The airplane skidded off the runway, damaging the left horizontal stabilizer forward and aft spars. Postaccident examination by a repair facility (and later confirmed by the manufacturer) disclosed the generator control unit (GCU) had failed.

Factual narrative

On August 23, 1996, approximately 1840 mountain daylight time, a Cessna TR182, N757QT, was substantially damaged when the main landing gear collapsed during landing at Telluride, Colorado. The private pilot was not injured. Visual meteorological conditions prevailed, and no flight plan was filed for the personal flight that originated at Loveland, Colorado, on August 23, 1996, approximately 1630.

According to the pilot, when he was 10 miles from the airport, he called for an airport advisory but got no reply. When he was 5 miles from the airport, he lowered the landing gear. The pilot said there was a total electrical failure, and he but could not recall if he observed a GEAR DOWN AND LOCKED indication. He attempted to reset the alternator/voltage regulator circuit breaker but to no avail. Upon landing, the left and right main landing gears collapsed; the nose landing gear was down and locked.

This mishap was reported on the date of the occurrence as an incident. On September 23, 1996, the Denver Field Office of the National Transportation Safety Board was advised by the FAA's Salt Lake City, Utah, Flight Standards District Office that an airworthiness inspector had examined the airplane and found that the left horizontal stabilizer forward and aft spars were bent.

A spokesman for West Star Aviation, a repair facility in Grand Junction, Colorado, reported the generator control unit (GCU) had failed. The unit was sent to Precision Airmotive in Everett, Washington, for examination and testing. A company spokesman identified the GCU as one of their products and confirmed the unit had failed.

Aircraft

Registration
N757QT
Reported as
Cessna TR182
Category
Airplane
Serial number
R18201258
Airframe hours
1,710
Engine
Lycoming O-540-L3C5D, 235 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
William A. Stern
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 3, 1995 · 69 hours before
Departed
FNL · Loveland, CO
Destination
TEX
Airport
TEX · Telluride Regional, runway 9, 6,870 × 100 ft, asphalt

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
48
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
460 total · 371 in this make and model · 460 as pilot in command · 49 in the last 90 days · 17 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
25 statute miles
Lowest ceiling
5,000 ft broken
Temperature
68 °F
Altimeter
30.00 inHg
Observed at
TEX

FAA reports on this event · 1

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

Other investigations on N757QT · 1

Matched to the same aircraft by N-number and date.