Atlas / NTSB / MKC68F0567

NTSB CAROL · Event

Event MKC68F0567

1968-04-29 BUFFALO, Minnesota, United States None 1 aircraft Status: Completed

Registry · N4509A

FAA Aircraft Registry record.

Make / Model

HEAD BALLOONS INC AX8-88

Engine

NONE NONE

Seats / Engines

4 seats · 1 engine

Last airworthiness date

19920618

ADS-B equipped

Yes — Mode-S A575B0

Registrant of record

AIR HOUND ADVENTURES LLC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N4509A Piper PA-22 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-22 · N4509A

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Takeoff — initial climb (C1)

Operator type

D

Airport

BUFFALO

Kind of flying

B0

Weather at impact

Sky

CLEAR

Wind

315° / 10 kt

Aircraft history

Total time

2,069 hrs

Pilot

Certificate

DA (DA)

Total hours

18,000

Age

44

Probable cause (from PRE1982.MDB)

PAX KNEE.

Investigator remarks

FUEL SELECTOR VALVE LOOSE,INADVERTENTLY MOVED BY

Cause factors

68/C/D6 C
PERSONNEL INADEQUATE MAINTENANCE AND INSPECTION Cause
74/C/CC C
POWERPLANT SELECTOR VALVES Cause
88/C/29 C
MISCELLANEOUS ACTS,CONDITIONS IMPROPERLY SECURED Cause
88/C/96 C
MISCELLANEOUS ACTS,CONDITIONS FUEL STARVATION Cause
88/K/94 K
MISCELLANEOUS ACTS,CONDITIONS OVERLOAD FAILURE 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 1172. Source file NTSB_1968_3_1172.txt. Modern CAROL record on data.ntsb.gov ↗.

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