Skip to content

Atlas / NTSB / IAD75FIG10

NTSB CAROL · Event

Event IAD75FIG10

1975-01-05 GAITHERSBURG, Maryland, United States None 1 aircraft Status: Completed

Registry · N4145Q

FAA Aircraft Registry record.

Make / Model

CAMERON BALLOONS US V-77

Year of manufacture

1991

Engine

NONE NONE

Seats / Engines

4 seats · 1 engine

Last airworthiness date

19911107

ADS-B equipped

Yes — Mode-S A4E612

Registrant of record

BLAIR FRANK L

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

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

CESSNA 310 · N4145Q

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Night

Weather

VMC

Phase of flight

EE

Operator type

D

Airport

MONTGOMERY CO

Kind of flying

B0

Weather at impact

Sky

CLEAR

Aircraft history

Serial number

000000000049

Total time

1,547 hrs

Pilot

Certificate

Commercial — instrument

Total hours

808

Age

25

Investigator remarks

FIVE OTR ACFT IN TFC PATTERN.

Cause factors

  • 64/A/39 A
    PILOT IN COMMAND FAILED TO ASSURE THE GEAR WAS DOWN AND LOCKED Cause — pilot/personnel action
  • 64/J/08 J
    PILOT IN COMMAND DIVERTED ATTENTION FROM OPERATION OF AIRCRAFT Joint cause
  • 88/J/61 J
    MISCELLANEOUS ACTS,CONDITIONS CONGESTED TRAFFIC-PATTERN Joint 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 0421. Source file NTSB_1975_3_0421.txt. Modern CAROL record on data.ntsb.gov ↗.