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 These generators have been replaced by an improved generator, J/N 903J826-4.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.)