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SEA94LA089

1994-03-21 · GILLETTE, Wyoming, United States · None · 1 aircraft · Status: Completed

Airport GCC

Current FAA registration · N9415S

Make / Model
BEECH 95-C55
Year of manufacture
1965 · 29 years old at event
Engine
CONT MOTOR IO 520 SERIES (285 hp)
Seats / Engines
6 seats · 2 engines
Last airworthiness date
19651228
ADS-B equipped
Yes — Mode-S AD13F7

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

PROCEDURES/DIRECTIVES WERE NOT FOLLOWED AND PARTIAL FAILURE OF THE LANDING GEAR SELECTOR SWITCH. A FACTOR TO THE ACCIDENT WAS AN INOPERATIVE GEAR WARNING SYSTEM.

Factual narrative

On March 21, 1994, at 0200 mountain standard time, a Beech 95- C55, N9415S, operated by Northern Colorado Air Charter, landed gear up at the Gillette Airport, Gillette, Wyoming. Visual meteorological conditions prevailed at the time and an instrument flight rules flight plan was filed. The airplane was substantially damaged and the certificated airline transport pilot and his two passengers were not injured. The flight was conducted under 14 CFR 135 that departed from Denver, Colorado, at 0005 on March 21, 1994. The pilot reported that a straight in approach for runway 34 was planned. The pilot reduced power and selected gear down. The pilot stated that he felt the landing gear coming down and called gear down. The approach was continued and just before touchdown, the pilot noted that the gear selector was down, however, the green gear light for the down and locked position was not illuminated. The pilot added power, however, the left side propeller contacted the runway and the pilot reduced power and landed the airplane with the landing gear retracted. During the post crash inspection, the airplane was jacked up and a gear cycle test was performed. It was found that the gear selector switch worked intermittently. The landing gear was cycled six times and one out of the six cycles of operation, the landing gear failed to extend. Further inspection revealed that the gear warning horn was inoperative. The aircraft maintenance logs indicate that on December 3, 1993, the airplane was signed off for an annual inspection. The entry indicates that the gear warning horn was inoperative as connected to the throttles. An entry following the annual inspection, dated the same date, indicates that the throttle warning horn was connected and tested for proper operation. AT THE END OF THE FLIGHT, THE PILOT REPORTED THAT HE SELECTED THE GEAR DOWN AND HEARD THE GEAR EXTENDING. JUST PRIOR TO TOUCHDOWN, THE PILOT NOTED THAT THE GEAR SELECTOR WAS DOWN; HOWEVER, HE DID NOT HAVE A GREEN GEAR DOWN AND LOCKED INDICATION. THE AIRPLANE WAS LANDED WITH THE LANDING GEAR RETRACTED. DURING THE POST CRASH INSPECTION, IT WAS FOUND THAT THE GEAR SELECTOR SWITCH FUNCTIONED INTERMITTENTLY. IT WAS ALSO FOUND THAT THE GEAR WARNING HORN THAT IS CONNECTED TO THE THROTTLES WAS INOPERATIVE. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1994_SEA94LA089.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

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