Cessna P210N N4780K

Summary

On 31 August 1985 at about 20:00 local time, a Cessna P210N registered N4780K was involved in an accident near Hayden, Colorado, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. No probable cause statement is available for this record.

Date

31 August 1985 at 20:00

Classification

Accident

Location

Hayden, Colorado, United States

Nearest airport

Yampa Valley (HDN)

Coordinates

40.4790, -107.2594

Aircraft

Cessna P210N

Registration

N4780K

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

North Platte → Hayden

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

DEN85LA232

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

PLT SAID ENG BEGAN SURGING DURING DESCENT FROM CURISE ALT. AFTER ADJUSTING BOOST PUMP, THROTTLE, AND MIXTURE, SURGING CEASED. PLT SAID HE DROPPED FLAPS AND LOWERED LANDING GEAR AT 2000 FT AGL AND 5 MI FROM ARPT. ENG BEGAN TO SURGE AGAIN. ADJUSTMENT OF THROTTLE AND MIXTURE DID NOT CORRECT CONDITION. ENG THEN LOST ALL POWER AND PLT MADE FORCED LANDING IN WHEAT FIELD 3 MI FROM ARPT. EXAM OF ENG REVEALED UPPER DECK PRESSURE REFERENCE LINE FROM MANIFOLD TO LEFT BANK FUEL INJECTOR NOZZLE ASS'Y WAS DISCONNECTED. LINE WAS STUFFED UNDERNEATH OTHER HOSES IN THE ENG COMPARTMENT. HOSE CLAMP WAS FOUND ON METAL CHANNEL. MAINTENANCE RECORDS INDICATE ALTERNATOR WAS REPLACED 7.3 FLYING HOURS BEFORE THE ACCIDENT. UPPER DECK PRESSURE REFERENCE LINE HAD TO BE DISCONNECTED IN ORDER TO REMOVE AND REPLACE ALTERNATOR.

Quoted verbatim from the NTSB record.