AD 55-16-02

Airworthiness directive · Fire Resistant Prop. Feathering Lines · Martin-Marietta 202, 202A and 404

Models
202, 202A, 404
Data sheets
TCDSA-795TCDS1A7
Registered aircraft
5 matched by model
Product
Aircraft · Large 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 May 30, 2024.

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The airworthiness directive

55-16-02 MARTIN: Applies to Models 202, 202A, and 404 Aircraft Equipped With Hamilton Standard Propellers.

Compliance required by first scheduled engine change after November 1, 1955, but not later than November 1, 1956.

To increase the fire-resistance integrity of the propeller feathering system against damage by a powerplant fire, all flexible hose components of propeller feathering lines forward of the firewall must be replaced with lines and fittings which will meet current fire-resistant requirements. The following hose assemblies are considered acceptable for this application:

(a) Aeroquip 680-12S hose assemblies with Aeroquip 304 protective sleeves over end fittings (Aeroquip assembly P/N 304000-12S).

(b) Resistoflex SSFR-3800-10 hose assemblies utilizing -12 connections.

(c) Aeroquip 309009-12S hose assemblies.

Affected TCDS · 2

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

Registered aircraft · 5

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
  • Martin5 aircraft
By year built
19521964
Registered aircraft by year built: 4 aircraft
19523
19641

1 with no year recorded

By model

Aircraft