Atlas / NTSB / SEA71FWG27

NTSB CAROL · Event

Event SEA71FWG27

1970-10-15 WEIPPE, Idaho, United States Serious 1 aircraft Status: Completed

Aircraft involved

N3155P Piper PA-23 Serious

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-23 · N3155P

Damage

Destroyed

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

D2

Operator type

D

Kind of flying

B0

Weather at impact

Sky

BROKEN

Temp

62° F

Aircraft history

Serial number

0000023-1086

Total time

2,860 hrs

Pilot

Certificate

Commercial — instrument

Total hours

204

Age

59

Probable cause (from PRE1982.MDB)

FEATHERED. PX DIED 10/25/70.

Investigator remarks

HIT GRND NOSE 1ST AT STEEP ANGLE.GR UP PROPS NOT

Cause factors

64/C/21 C
PILOT IN COMMAND IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS Cause
88/C/02 C
MISCELLANEOUS ACTS,CONDITIONS ANTI-ICING/DEICING EQUIPMENT-IMPROPER OPERATION OF/OR FAILED TO USE Cause
88/C/72 C
MISCELLANEOUS ACTS,CONDITIONS ICE-CARBURETOR Cause
82/C/G C
WEATHER CONDITIONS CONDUCIVE TO CARB./INDUCTION SYSTEM ICING Cause
64/B/49 B
PILOT IN COMMAND MISJUDGED SPEED AND ALTITUDE
88/K/48 K
MISCELLANEOUS ACTS,CONDITIONS FAILURE OF TWO OR MORE ENGINES Joint factor
88/K/DG K
MISCELLANEOUS ACTS,CONDITIONS INTENTIONAL WHEELS-UP Joint factor
83/K/F K
TERRAIN ROUGH/UNEVEN Joint factor

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 2063. Source file NTSB_1970_3_2063.txt. Modern CAROL record on data.ntsb.gov ↗.

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