Beechcraft S-35 N977KM

Summary

On 3 November 1988 at about 21:00 local time, a Beechcraft S-35 registered N977KM was involved in an incident near Matheson, Colorado, United States. 2 people were on board and nobody was injured. The aircraft was slightly damaged. No probable cause statement is available for this record.

Date

3 November 1988 at 21:00

Classification

Incident

Location

Matheson, Colorado, United States

Coordinates

39.1108, -103.8902

Aircraft

Beechcraft S-35

Registration

N977KM

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Kansas City → Falcon

Aircraft damage

Minor

Weather

VMC

Light

Day

NTSB number

DEN89IA028

Nobody was injured.

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

THE PRIVATE PLT AND A FRIEND WERE ENROUTE FOR A HUNTING TRIP. THIRTY MILES EAST OF A REFUELING STOP, THE PILOT HEARD A LOUD KNOCK. OIL COVERED THE WINDSCREEN AND THE ENGINE SEIZED. THE PLT LOOKED OUT THE SIDE WINDOW VENT TO SELECT A FORCED LANDING AREA. A WHEELS UP LANDING WAS PERFORMED IN A GRAIN FIELD. AFTER EXITING THE ACFT, THE PLT SAW THAT THE PROPELLER WAS MISSING. DAMAGE WAS REPORTED AS SUBSTANTIAL, BUT A POST INCIDENT INSPECTION REVEALED MINOR DAMAGE. THE PROPELLER WAS NOT FOUND BUT TWO SHEARED PROPELLER BOLTS, P/N A-2040 WERE FOUND IN THE COWLING. IN A PHONE CONVERSATION, A HARTZELL TECHNICAL REPRESENTATIVE, SAID THE PROPER BOLT FOR THIS INSTALLATION IS P/N A-1328-1. HE SAID P/N A-2040 WAS SUPERSEDED PRIOR TO 1970. LOG BOOKS SHOW THIS PROPELLER WAS OVERHAULED 83 FLIGHT HRS PRIOR TO THIS INCIDENT. THE REPAIR SHOP REPORTED THAT THE BOLTS THEY REMOVED WERE INSPECTED AND RE-INSTALLED IN THE HUB.

Quoted verbatim from the NTSB record.