Pratt & Whitney Canada PW100 Engines - Wencor Main Engine Fuel FiltersFAA SPECIAL AIRWORTHINESS
Aviation Safety INFORMATION BULLETIN
SUBJ: Engine Fuel and Control, Engine Fuel Filter Date: September 29, 2017
This is information only. Recommendations aren’t mandatory.
This Special Airworthiness Information Bulletin (SAIB) alerts owners, operators, and certificated
repair facilities of a quality escape of Wencor parts manufacturer approval (PMA) main engine
fuel filters, part number (P/N) 5905587WE, used on the Pratt and Whitney Canada Corporation
(PWC) engines listed in Table 1. The engines listed in Table 1 are all multi-engine aircraft.
At this time, the airworthiness concern is not an unsafe condition that would warrant an
Airworthiness Directive (AD) action under Title 14 of the Code of Federal Aviation Regulations (14
CFR) part 39.
During a visual check prior to installation an operator noted excess blue epoxy used in the
construction of Wencor fuel filters on the downstream side of the fuel filter’s filter media. One
quarter of the 36 filters Wencor had in stock had this issue. The concern is the effects on fuel flow to
the engine if this epoxy were to liberate. To date, there have been no in service events nor reports of
The FAA recommends that all owners and operators of the PWC engines listed in Table 1, with
Wencor PMA fuel filters, P/N 5905587WE, installed, or in stock, implement the actions outlined in
the Wencor Service Bulletin 160330-5905587WE, Rev A, or later versions.
PWC Series Engines Next Higher NHA Air
Assembly (NHA) Description Transport
PW120, PW121, 5006488, 5008269, Power driven
PW123, PW124, 5009980, 5009982, rotary fuel
PW125, PW126, 5009984, 5009986 pump
For Further Information Contact
Matthew Bryant, Aerospace Engineer; Denver ACO, East 68th Avenue, Room 214, Denver,
Colorado 80249; phone 303-342-1092; fax 303-342-1088; email: Matthew.Bryant@faa.gov.
For Related Service Information Contact
Jon Bies, Wencor Group, 1625 N 1100 W, Springville, UT 84663; email: email@example.com; phone:
801-491-2543; Website: https://www.wencor.com
This is a partial extract of the full document - please refer to the actual report for full information.