Atlas / NTSB / OAK67F0026

NTSB CAROL · Event

Event OAK67F0026

1966-06-11 SONOMA, California, United States Minor 1 aircraft Status: Completed

Aircraft involved

N5536Z Piper PA-22 Minor

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 · N5536Z

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Cruise — level (EA)

Operator type

Personal/private

Airport

SONOMA VALLEY

Kind of flying

B1

Weather at impact

Sky

CLEAR

Wind

270° / 8 kt

Temp

75° F

Aircraft history

Total time

1,556 hrs

Pilot

Certificate

Airline transport

Total hours

17

Age

31

Probable cause (from PRE1982.MDB)

ND AIRSCOOP CAME LOOSE AND BLOCKED AIR INTAKE.

Investigator remarks

FELT MATERIAL USED AS GASKET BETWEEN AIRFILTER A

Cause factors

84/C/G C
MISCELLANEOUS FOREIGN MATERIAL AFFECTING NORMAL OPERATIONS Cause
68/C/D6 C
PERSONNEL INADEQUATE MAINTENANCE AND INSPECTION Cause

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 1502. Source file NTSB_1966_3_1502.txt. Modern CAROL record on data.ntsb.gov ↗.

Beyond the agency record

Search this event elsewhere.

Pre-filled searches into the sources where news + community discussion of aviation events lives. External sources are reported, not agency. Treat them as signal that something happened, not as fact about what happened.

TallyAero Live Wire Aviation press

Entity-clustered aviation events in the press — last 24 hr + 30-day archive.

NTSB CAROL Agency ↗

Official agency record + docket.

NTSB Docket Agency ↗

Investigative docket: factual reports, photos, transcripts.

Aviation Safety Network Aviation press ↗

Long-running aviation incident database (Flight Safety Foundation).

Kathryn's Report Aviation press ↗

Community NTSB synthesis blog — often has photos and witness reports.

Aviation Herald Aviation press ↗

Gold-standard aviation incident blog.