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FAA
Federal Aviation Administration Department of Transportation
Aviation Safety
AIRWORTHINESS DIRECTIVE
Generated by Aircraft-logs.com — March 22, 2026

AD 58-26-03 ACTIVE

Deicing Generator
Key Information
AD Number 58-26-03 Status Active
Effective Date Not specified Issue Date Not specified
Docket Number Unknown Amendment N/A
Product Type ["Aircraft"] Product Subtype ["Large Airplane"]
CFR Part --- - Part 39 CFR Section N/A
Citation This information is not available.
Applicability
Manufacturer(s) Maryland Air Industries, Inc.
Model(s) F-27 F-27A F-27B F-27F F-27G F-27J F-27M
Regulatory Text

58-26-03 FAIRCHILD: Applies to all F-27 aircraft.

Compliance required as indicated.

A number of failures of the Westinghouse P/N 903J826, 903J826-2, 903J826-3 a.c. deicing generators have occurred in service. These generators have been replaced by an improved generator, J/N 903J826-4.

Inspect Westinghouse P/N 903J826-4 at the first removal or by 500 hours, whichever comes first, to determine that the bearing support in the mounting bracket is secure with no evidence of looseness or failed rivets.

(Fairchild Service Bulletin 24-1 cover this same subject.)

AD 58-26-03 — Deicing Generator
Printed from Aircraft-logs.com — 03/22/2026