United Instruments, Inc. Airworthiness Directives

3 ADs indexed for United Instruments, Inc. aircraft.

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2017-04-06

final rule

Airworthiness Directives; United Instruments, Inc. Series Altimeters

Unsafe Condition: Reports of certain altimeters displaying higher than actual altitude due to a slow diaphragm leak.

Effective: Apr 7, 2017 Category: aircraft Compliance: Within 12 months after April 7, 2017 (the effective date of this AD).

Why matched: Airworthiness Directives; United Instruments, Inc. Series Altimeters

86-05-02

final rule

Airworthiness Directives; UNITED INSTRUMENTS, INC. Altimeter Part Numbers 5934, 5934A, 5934M, 5934AM, 5934P, 5934PA, 5934PM, 5934PAM, 5934D, 5934PD, 5934AD, and 5934PAD

Unsafe Condition: Possible erroneous altitude information from being displayed to the pilot due to unsynchronized altitude indication pointers and barometric pressure dial when adjusting the altimeter.

Effective: May 28, 1986 Category: appliance Compliance: Prior to further flight or no later than July 1, 1986

Why matched: Airworthiness Directives; UNITED INSTRUMENTS, INC. Altimeter Part Numbers 5934, 5934A, 5934M, 5934AM, 5934P, 5934PA, 5934PM, 5934PAM, 5934D, 5934PD, 5934AD, and 5934PAD

74-24-13

final rule

Airworthiness Directives; UNITED INSTRUMENTS, INC.: Altimeters Installed On Various Aircraft

Unsafe Condition: Altimeters may be deprived of readings during certain aircraft operating conditions.

Effective: Dec 5, 1974 Category: appliance Compliance: Within the next 10 hours' time in service after the effective date; prior to further flight; on o...

Why matched: Airworthiness Directives; UNITED INSTRUMENTS, INC.: Altimeters Installed On Various Aircraft

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