AD 58-17-04

Airworthiness directive · Water Rudder Modification · Piaggio & C. P.136-L1 and P.136-L2

Models
P.136-L1, P.136-L2
Data sheet
TCDSA-813
Registered aircraft
8 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 May 30, 2024.

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The airworthiness directive

58-17-04 PIAGGIO: Applies to All Models P.136-L1 and P.136-L2 Aircraft. Compliance required by December 1, 1958. Several cases have occurred where the water rudder inadvertently dropped into the extended position during water landings. In order to avoid future occurrences, Piaggio & Co. recommends that a hook be incorporated at the water rudder retraction cylinder, which is controllable by the pilot. In addition, the forward section of the water rudder should be cut off, in order to prevent any interference with the retraction of the water rudder because of the accumulation of debris. This modification is considered mandatory by the Registro Aeronautico Italiano. The FAA concurs and considers compliance therewith mandatory. (Piaggio & Co. Change Order No. 36 L-42, dated May 29, 1958, covers the same subject.)

Affected TCDS · 1

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

Registered aircraft · 8

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
  • Piaggio8 aircraft
By year built
19551959
Registered aircraft by year built: 3 aircraft
19551
19561
19591

5 with no year recorded

By model

Aircraft