AD 72-25-06

Airworthiness directive · Nose Gear Extension · Volpar Mark IV tricycle landing gear (Southwestern Aero Exchange STC SA111WE or 2 others)

Effective
December 9, 1972
Models
3N, 3NM, 3TM, C-45G, C-45H, D18C and 10 more
Data sheet
TCDSA-765
Registered aircraft
250 matched by model
Product
Aircraft · Small airplane
Amendment
39-1572

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

72-25-06 BEECH: Amdt. 39-1572. Applies to Beech Models C-45G, TC-45G, C-45H, TC-45H, TC-45J (SNB-5), RC-45J (SNB-5P) D18C, D18S, E18S, E18S-9700, G18S, H18, JRB- 6, 3N, 3NM and 3TM Aircraft certificated in all categories with STC SA4-1531, STC SA111WE, STC SA1832WE or any other STC modification incorporating the provisions of the Volpar TriGear Installation.

Compliance required as indicated.

To prevent possible failure of the nose landing gear to extend from the retracted position on those aircraft with Volpar TriGear installed, accomplish the following:

For airplanes incorporating Volpar Tricycle Landing Gear, within the next 100 hours' time in service after the effective date of this AD unless already accomplished, modify the Volpar nose walking beam assembly, P/N 261, in accordance with Volpar Service Bulletin No. 21, as revised 7 August 1972, or later FAA-approved revision, or an equivalent modification approved by the Chief, Aircraft Engineering Division, FAA Western Region.

NOTE: For bulletins, parts or service information contact:

Volpar Incorporated 16300 Stagg Street Van Nuys, California 91406 Phone 213-787-4393

NOTE: Pilots are cautioned to conduct a through pre-flight inspection in this area. A decal should be located on the nose gear shock strut housing listing the recommended strut inflation pressure.

This amendment becomes effective December 9, 1972.

Affected TCDS · 1

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

Registered aircraft · 250

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
  • Beech250 aircraft
By year built
19421996
Registered aircraft by year built: 189 aircraft
19422
19436
19441
19455
194616
19472
19482
19491
19502
19519
195225
19537
195413
19557
19568
195714
19588
195917
196011
19616
19627
19632
19647
19656
19661
19692
19791
19961

61 with no year recorded

By model

Aircraft

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