AD 69-18-01

Airworthiness directive · Fuel System Modification · Textron 35, A35, B35 and 1 more

Effective
August 30, 1969
Models
35, A35, B35, C35
Data sheet
TCDSA-777
Registered aircraft
831 matched by model
Product
Aircraft · Small airplane
Amendment
39-830

Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed January 21, 2026.

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The airworthiness directive

69-18-01 BEECH: Amdt. 39-830. Applies to all Model 35, A35, B35 and C35 (Serial Numbers D-1 through D-2900) airplanes equipped with Beech P/N 35-924065 fuel unit.

Compliance: Required as indicated.

Within the next 100 hours' time-in-service, but not to exceed August 30, 1970, unless already accomplished, accomplish either A or B:

A) Replace Beech P/N 35-924065 fuel unit with Beech P/N 35-924230 fuel unit having separate selector valve and pump controls or with any other modification of this portion of the fuel system approved by Chief, Engineering & Manufacturing Branch, Central Region, FAA.

B) Install Beech fuel selector valve disengagement warning light, Kit No. 35-5030, in accordance with Beech Service Instructions No. 0243-289, or any other modification of this portion of the fuel system approved by the Chief, Engineering & Manufacturing Branch, Central Region, FAA.

This AD supersedes AD 53-20-02.

This amendment becomes effective August 30, 1969.

Affected TCDS · 1

The type certificate data sheets for the models this AD names, matched by model and maker.

Registered aircraft · 831

Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.

By aircraft maker
  • Beech831 aircraft
By year built
19471964
Registered aircraft by year built: 645 aircraft
1947171
1948117
194943
1950107
195186
1952110
19532
19551
19563
19573
19621
19641

186 with no year recorded

By model

Aircraft

See all 831 aircraft

NTSB investigations that cite this AD · 1

Their narratives or probable cause name AD 69-18-01, often to say whether the aircraft complied with it.