AD 86-20-11

Airworthiness directive · Ammeter Replacement · Piper PA-44-180T

Effective
October 17, 1986
Published
October 14, 1986
Issued
October 2, 1986
Model
PA-44-180T
Data sheet
TCDSA19SO
Registered aircraft
38 matched by model
Product
Aircraft · Small airplane
Amendment
39-5441

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 November 21, 2025.

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The airworthiness directive

86-20-11 PIPER AIRCRAFT CORPORATION: Amendment 39-5441. Applies to Model PA-44-180T (Serial Numbers 44-8107001 through 44-8207020) airplanes certificated in any category.

Compliance: Required as indicated after the effective date of this AD, unless already accomplished.

To prevent smoke in the cockpit and possibly complete electrical failure resulting from shorting of ammeter terminal posts, accomplish the following:

(a) Within the next 50 hours time-in-service (TIS) after the effective date of this AD, replace both ammeters with Ammeter Replacement Kits, Piper Part No. 765-302: in accordance with the instructions contained in Piper Service Bulletin No. 847, dated August 28, 1986.

(b) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD can be accomplished.

(c) An equivalent method of compliance if used, must be approved by the Manager, Atlanta Aircraft Certification Office, FAA, 1075 Inner Loop Road, College Park, Georgia 30337.

All persons affected by this directive may obtain copies of the document(s) referred to herein upon request to Piper Aircraft Corp., 2926 Piper Drive, Vero Beach, Florida 32960; or the FAA, Rules Docket, Office of Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106.

This amendment becomes effective on October 17, 1986.

Affected TCDS · 1

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

Registered aircraft · 38

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
  • Piper38 aircraft
By year built
19801982
Registered aircraft by year built: 32 aircraft
198011
198117
19824

6 with no year recorded

By model

Aircraft

See all 38 aircraft