STC SA2003NM

This Certificate issued to United Air Lines, Inc.

600 Jefferson Street Houston, Texas 77002 Part 4b* of the Civil Air Regulations.

*Certification basis is set forth on Type Certificate Data Sheet A3WE.

Original Product Type Certificate Number : A3WE Make: Boeing Model:

727-200 Series Description of Ty pe Design Chang e: Installation of an engine power trim system in accordance with FAA Approved United Airlines Report F-1953, Revision B, da ted July 15, 1983, or later FAA approved revisions.

United Air Lines FAA Approved Airplane Flight Manua l Supplement B727-200 date d September 13, 1983, or later FAA approved revisions is required for this installation.

Limitations and Conditions: The approval of this change in type design applies to the above listed models only.

This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modificati ons will introduce no adverse effect upon the airworthiness of that aircraft. If the holder agrees to permit another pers on to use this certificate to alter the product, the holder shall give the other person written evidence of that permission. Refer to continuation sheet page 3.

Date of application : June 17, 1981

Date of issuance : September 13, 1983

Date reissued : November 30, 2011

Date amended : September 19, 1983

( Signature) Haifa Haj-Eid Supervisor, Technical & Administrative Support Staff Los Angeles Aircraft Certification Office ( Title)

Transfer the ownership of Supplemental Type Certificate Number

to (Name of transferee)

(Address of transferee) (Number and street)

(City, State, and ZIP Code)

from (Name of grantor) (Print or type)

(Address of grantor) (Number and street)

(City, State, and ZIP Code)

Signature of grantor (In ink):

U.S. GPO 1987-763-28

Number SA2003NM

Limitations and Conditions: (Continued)

The following limitations and conditions apply:

1) The engine power trim system is not to be engaged during takeoff, descent, final approach or go-around. EPR values displayed while in either the Maximum Continuous or Takeoff mode are advisory only and are not to be used in lieu of AFM charted values.

2) The engine power trim system is approved for use with Pratt & Whitney model JT8D-15 engines only, unless FAA approval is indicated for other engine models.

3) The safe life limit of the P/N 2022790-1 and -2 engine power trim system gear box is limited to 25,000 hours. Extension of this limit may be accomplished by FAA approved data only.

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