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Airworthiness Directive

AD 97-03-03 62 FR 4908 Superseded

Federal Aviation Administration · 14 CFR part 39

Requires removing the terminal diodes that have a 70 amp direct current (DC) Generation System, which is referred to as Modification NB/M/1148, and installing Modification NB/M/1571, which consists of new terminal diodes with a…

Superseded by AD 98-04-17Federal Register (opens in a new tab)

FR document
97-2216
Amendment
39-9909
Published
1997-02-03
Effective
1997-03-23
Models covered
1

Last live check: 2026-08-19

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AD

97-03-03

FR doc 97-2216 · 62 FR 4908

AD 97-03-03Published 1997-02-03Effective 1997-03-23

Superseded by 98-04-17

Supersedence is read from the Federal Register text of the newer AD — the FAA publishes no structured field for it — and names only ADs held in our index.

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Requires removing the terminal diodes that have a 70 amp direct current (DC) Generation System, which is referred to as Modification NB/M/1148, and installing Modification NB/M/1571, which consists of new terminal diodes with a higher amp rating.

Full official abstract

This amendment adopts a new airworthiness directive (AD) that applies to certain Pilatus Britten-Norman BN-2, BN-2A, and BN-2B series airplanes that do not have generator terminal diodes installed with Modification NB/M/1571. This action requires removing the terminal diodes that have a 70 amp direct current (DC) Generation System, which is referred to as Modification NB/M/1148, and installing Modification NB/M/1571, which consists of new terminal diodes with a higher amp rating. Reports from operators that one or both diodes were failing prompted this action. The actions specified by this AD are intended to prevent loss of electrical power to the navigation, communications, and light systems, which could impair the pilot's ability to maintain control of the airplane.

More directives for Britten-Norman BN-2 Islander

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  5. AD 2016-06-01 Airworthiness Directives; B-N Group Ltd. Airplanes Effective 2016-04-19

All Britten-Norman BN-2 Islander directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 97-03-03 (opens in a new tab) Print AD packet (opens the full Federal Register document in a new tab)

Applies to 1 model in our index