AD 98-18-07

final rule
Data completeness: 70%

Airworthiness Directives; Pilatus Britten-Norman Ltd. BN-2, BN-2A, BN-2B, and BN-2A MK. 111 Series Airplanes

AD Number
98-18-07
Status
final_rule
Effective Date
Product Category
aircraft
Docket
97-CE-111-AD
FR Citation
Federal Register: August 27, 1998 (Volume 63, Number 166)

Applicability

TypeManufacturerModelDetails
aircraft B-N Group Ltd. BN-2 Airworthiness Directives; Pilatus Britten-Norman Ltd. BN-2, BN-2A, BN-2B, and BN-2A MK. 111 Series Airplanes
aircraft B-N Group Ltd. BN-2A Airworthiness Directives; Pilatus Britten-Norman Ltd. BN-2, BN-2A, BN-2B, and BN-2A MK. 111 Series Airplanes
aircraft B-N Group Ltd. BN-2A-2 Airworthiness Directives; Pilatus Britten-Norman Ltd. BN-2, BN-2A, BN-2B, and BN-2A MK. 111 Series Airplanes
aircraft B-N Group Ltd. BN-2A-20 Airworthiness Directives; Pilatus Britten-Norman Ltd. BN-2, BN-2A, BN-2B, and BN-2A MK. 111 Series Airplanes
aircraft B-N Group Ltd. BN-2A-21 Airworthiness Directives; Pilatus Britten-Norman Ltd. BN-2, BN-2A, BN-2B, and BN-2A MK. 111 Series Airplanes
aircraft B-N Group Ltd. BN-2A-26 Airworthiness Directives; Pilatus Britten-Norman Ltd. BN-2, BN-2A, BN-2B, and BN-2A MK. 111 Series Airplanes
aircraft B-N Group Ltd. BN-2A-27 Airworthiness Directives; Pilatus Britten-Norman Ltd. BN-2, BN-2A, BN-2B, and BN-2A MK. 111 Series Airplanes
aircraft B-N Group Ltd. BN-2A-3 Airworthiness Directives; Pilatus Britten-Norman Ltd. BN-2, BN-2A, BN-2B, and BN-2A MK. 111 Series Airplanes
aircraft B-N Group Ltd. BN-2A-6 Airworthiness Directives; Pilatus Britten-Norman Ltd. BN-2, BN-2A, BN-2B, and BN-2A MK. 111 Series Airplanes
aircraft B-N Group Ltd. BN-2A-8 Airworthiness Directives; Pilatus Britten-Norman Ltd. BN-2, BN-2A, BN-2B, and BN-2A MK. 111 Series Airplanes

Unsafe Condition

Damage to the components of the generator system, which could result in generator system failure during critical phases of flight.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect the generator system for a 70A generator installation per PBN SB BN-2/SB.229. If found, replace the 70A generator with a 50A generator or upgrade to a 70A system with NB/M/1148 and NB/M/1571 (for BN-2, BN-2A, BN-2B models). BN-2A MK.111 series must replace with 50A generator.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within the next 3 calendar months after the effective date of this AD, unless already accomplished.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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