Boeing 707-323B N712PC

Summary

On 22 January 1989 at about 16:49 local time, a Boeing 707-323B registered N712PC was involved in an incident near Salt Lake City, Utah, United States. 194 people were on board and nobody was injured. The aircraft was slightly damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

22 January 1989 at 16:49

Classification

Incident

Location

Salt Lake City, Utah, United States

Nearest airport

Salt Lake City (SLC)

Coordinates

40.8090, -111.9408

Aircraft

Boeing 707-323B

Registration

N712PC

Category

Airplane

Engines

4

Operator

Not recorded

Operating rule

Part 121: Air Carrier

Purpose of flight

Unknown

Phase of flight

Not recorded

Route

Honolulu → Unknown

Aircraft damage

Minor

Weather

IMC

Light

Day

NTSB number

DEN89IA067

Nobody was injured.

THE PILOT-IN-COMMAND'S ATTEMPT TO ALIGN THE AIRPLANE WITH THE RUNWAY AT AN ALTITUDE INSUFFICIENT FOR SAFE MANEUVERING, RESULTING IN THE NO. 1 ENGINE STRIKING THE RUNWAY. CONTRIBUTING FACTORS INCLUDE OBSCURED VISIBILITY DUE TO FOG, THE CAPTAIN'S LOSS OF DEPTH PERCEPTION, AND PILOT FATIGUE DUE TO DISRUPTED CIRCADIAN RHYTHM.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

PLT WAS EXECUTING CATEGORY I ILS APCH TO RWY 34L AFTER FLYING FROM HON TO SLC. PLT SAID HE 'CAME OFF GAUGES' AT 300 FT AGL EXPECTING TO SEE RWY BUT DIDN'T. AT 200 FT AGL, HE SAW RWY 150 FT TO LEFT BUT LOST ALL DEPTH PERCEPTION. PLT CONSIDERED EXECUTING MISSED APCH BUT FELT HE COULD ALIGN ACFT WITH RWY WITH ALT REMAINING. WHILE MANEUVERING, NO. 1 ENG STRUCK RWY, LEAVING 50-60 FT LONG, 1-INCH DEEP GOUGE. IN PREVIOUS 30 HR PERIOD, PLT HAD BEEN ON DUTY 18 HRS, 30 MIN, AND HAD FLOWN 13 HRS, 25 MIN. HE HAD BEEN OFF DUTY 11 HRS, 24 MIN, BUT HAD SLEPT ONLY 1 HR.

Quoted verbatim from the NTSB record.