AD 59-08-01

Airworthiness directive · Landing Gear Limit Switches · Textron A35, B35 and C35

Models
A35, B35, C35
Data sheet
TCDSA-777
Registered aircraft
565 matched by model
Product
Aircraft · Small airplane

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

59-08-01 BEECH: Applies to Models A35, B35, C35, Serial Numbers D-1501 Through D-2800.

Compliance required prior to July 1, 1959.

Several cases of landing gear actuation failure have been attributed to malfunctioning of the landing gear limit switches due to oil accumulation in the switch. Inspect the switches in the gear box area and if they are located under the gear box they must be:

(1) Cleaned and sealed at the switch case parting surfaces with polyethylene, vinyl or rubber cement and reinstalled in the same location; (use minimum cement to assure that none gets inside switch) or

(2) Replaced with new switches installed in a location to preclude oil contamination. Beechcraft Service Bulletin 35-21, A35-14, B35-7, and C35-5, dated June 1, 1953, and Supplement dated August 15, 1953, provide an acceptable procedure for relocation of the switches.

Affected TCDS · 1

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

Registered aircraft · 565

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
  • Beech565 aircraft
By year built
19471964
Registered aircraft by year built: 437 aircraft
19472
194881
194943
1950107
195186
1952110
19531
19563
19573
19641

128 with no year recorded

By model

Aircraft

See all 565 aircraft