Atlas / NTSB / LAX77FUM26

NTSB CAROL · Event

Event LAX77FUM26

1977-04-20 BRAWLEY, California, United States None 1 aircraft Status: Completed

Aircraft involved

N9908P Piper PA-36 None

Historical record (pre-1982)

NTSB recorded this accident in the pre-1982 coded-field schema — structured fields rather than free-text narrative. Decoded codes use established NTSB single-letter taxonomies; cause factors remain verbatim pending the Form 6120.4 codebook lookup.

Aircraft

PIPER PA-36 · N9908P

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

DJ

Operator type

Part 135 (air taxi/commuter)

Kind of flying

CA

Weather at impact

Sky

CLEAR

Temp

73° F

Aircraft history

Serial number

0036-7560014

Total time

799 hrs

Pilot

Certificate

Commercial

Total hours

27,527

Age

54

Probable cause (from PRE1982.MDB)

EXTENDED PERIOD. DUSTING SUGAR BEETS.

Investigator remarks

NR 4 EXH VALVE FAILED DUE TO THERMAL FATIGUE OVR

Cause factors

74/C/AF C
POWERPLANT VALVE ASSEMBLIES Cause
88/C/36 C
MISCELLANEOUS ACTS,CONDITIONS FATIGUE FRACTURE Cause
83/B/A B
TERRAIN WET,SOFT GROUND
83/B/D B
TERRAIN HIGH VEGETATION

Decoded against the NTSB Form 6120.4 cause-factor codebook (ct_Pre1982 table). Each row shows the raw triplet, modifier (Cause / Factor / etc.), category, and specific code.

Source: NTSB pre-1982 historical archive. Docket 3 2658. Source file NTSB_1977_3_2658.txt. Modern CAROL record on data.ntsb.gov ↗.

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