Safety Information BulletinAirworthiness

ID: NE-17-27
Issue date: 2017-10-13
Source: FAA
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Pratt & Whitney Canada PW100 Engines - Wencor Main Engine Fuel Filters

FAA SPECIAL AIRWORTHINESS
Aviation Safety INFORMATION BULLETIN
SAIB: NE-17-27
SUBJ: Engine Fuel and Control, Engine Fuel Filter Date: September 29, 2017
This is information only. Recommendations aren’t mandatory.

Introduction

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.

Background

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
epoxy liberation.

Recommendation

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.

TABLE 1
PWC Series Engines Next Higher NHA Air
Assembly (NHA) Description Transport
P/Ns Association
(ATA)
PW118, PW119,
PW120, PW121, 5006488, 5008269, Power driven
73-10-09,
PW123, PW124, 5009980, 5009982, rotary fuel
73-10-07
PW125, PW126, 5009984, 5009986 pump
PW127

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.




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For Related Service Information Contact

Jon Bies, Wencor Group, 1625 N 1100 W, Springville, UT 84663; email: jbies@wencor.com; phone:
801-491-2543; Website: https://www.wencor.com




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This is a partial extract of the full document - please refer to the actual report for full information.
Sources as credited.