STC SA2508NM

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA2508NM This certificate issued to: John Watson 1314 Greenwood Drive Modesto, CA 95350 Purt 3* of the Civil Air

• Regulations: *See page 5.

Original Product - Type Pertificate Number 2A13 Make Piper Merel PA-28-140, S/N 28-7125155 (N18031) Normal Category only FAA Approved John Watson Airplane Flight Manual Supplement dated September 14, 1984 is required with this installation.

Limitations and Conditions: Data not suitable for reproduction of installation in other aircraft; therefore, they are satisfactory for Piper PA-28-140 S/N 28-7125155 only.

No additional modifications of this type are to be approved solely by reference to Supplemental Type Certificate or to the data submitted therefor. Supplemental Type Certificate Addendum No. SA2508NM is a part of this certificate. A copy of this certificate and John Watson Report No. 1 shall be maintained as a part of the

Date of Application: July 1, 1983 Date Reissued:

Date of Issuance: September 14, 1984 Date Amended:

EDERAL AVIATION Mavin 1. Rammelstug By Direction of the Administrator (Signature) TO MINISTRATOR A CHARLES I. BLOMER, Manager Western Aircraft Certification Office (Title) 000, or imprise ent not exceedins wars, or both.

TI icate may b red in accordi 4 FAR 21.47.

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United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) (I) Sept 14, 1984 Number: SA2503NM Supplemental Type Certificate ADDENDUM NO. SA2508NM The conditions and limitations of Type Certificate Data Sheet 2A13 apply except as follows:

This Addendum, which is part of Supplemental Type Certificate No. SA2508NM, prescribes conditions and limitations under which the product for which the STC was issued meets the airworthiness requirements of the Civil Air Regulations.

A copy of this Addendum shall be maintained as part of the modified aircraft's permanent records.

Supplemental Type Certificate Holder: John Watson I - Model PA-28-140 (Normal Category) as modified by STC SA2508NM Engine Lycoming I0-360-C1D6 Fuel 100 Minimum Grade Aviation Gasoline Engine Limits For all operations: 180 HP, 2700 RPM, 26.4 M.P. @ S.L.

180 HP, 2700 RPM, 25.5 M.P. @ 3100 ft.

Straight line variation between points given.

Propeller and Hartzell HC-C2YK-IBF/F7666A-2 Propeller Limits Hub Model: HC-C2YK -IBF Blade Model: F7666-A-2 Diameter: Maximum /4 1n.

Minimum 72.5 in.

No further reduction permitted.

Pitch Settings: @30" Sta. Low 12.2 + .2° High 29.0°7.2° Governor: Hartzell F-2-7 Spinner: Piper P/N 99374-0 Center of Normal Category only Gravity Range (+84.0) to (+95.9) at 1650 lb. or less (+85.9) to (+95.9) at 1975 lb.

(+88,4) to (+95.9) at 2150 1b.

Straight line variation between points given.

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United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) (I) Sept 14, 1984 Number SA2508NM Supplemental Type Certificate ADDENDUM NO. SA2508M (cont.)

Maximum Weight 2150 1b.

No. of Seats 4 (2 at + 85.5, 2 at + 117) Oil Capacity 8 qts. at +29.5 (6 qts. usable) Powerplant Instrument Minimum. Normal Caution Maximum Markings Red Radial Green Arc Yellow Arc Red Radial Tachometer (RPM) -- - 500-2600 2600-2700 2700 Manifold Press. - - - - - - 26.4 Oil Temp (°F) - - 75-245 - -- 245 Oil Press (PSI) 25 60-90 25-60 90 Fuel Press (PSI) 14 14-45 - - 45 Cylinder Head Temp (°F) (Optional) -- -- - -- #3 Cylinder (Well-Type Thermocouple) 500° Serial Nos. eligible 28-7125155 only

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(1) Sept 14, 1984 Number: SA2508NM Supplemental Type Certificate ADDENDUM NO. SA2508NM (cont.)

Certification Basis: CAR 3, effective May 15, 1956 including amendments 3-1, 3-2, 3-4 and para. 3.304 and 3.705 of amendment 3-7; also FAR

23.955(c) effective December 29, 1973 in lieu of CAR 3.435.

Required Equipment: In addition to the equipment applicable and required by Type Certificate Data Sheet Sheet No. 2A13, the equipment specified by John Watson Report No. 1 must be installed as a result of incorporating this STC.

NOTE 1. Current weight and balance report including list of equipment included in certificated empty weight, and loading instructions when necessary, must be in the aircraft.

NOTE 2. The following information shall be provided to pilot in the form of placards or markings:

ALT

a. At the Alternate induction air control INDUCTION AIR FILTER"+

b. At the wing fuel tank filler caps:

"FUEL - 25 GAL CAPACITY 100 MIN. GRADE AVGAS"

c. At the propeller control quadrant: INC 1

I PROPELLER DEC"+

d. At the mixture control:

"PULL LEAN"

e. In full view of the pilot:

¿THIS AIRPLANE MUST BE OPERATED AS A NORMAL CATEGORY

AIRPLANE IN COMPLIANCE WITH THE OPERATING LIMITATIONS STATED IN THE FORM OF PLACARDS, MARKINGS AND MANUALS."

NO ACROBATIC MANEUVERS (INCLUDING SPINS) ARE APPROVED FOR NORMAL CATEGORY OPERATIONS." (Ref.)

Delete all existing placards referring to Utility Category Operations and spins.

47.

PAGE T PAGES

(1) September 14, 1984 Number: SA2508NM Supplemental Type Certificate ADDENDUM NO. SA2508NM (cont.)

NOTE 2. Placards (cont.)

e. MAXIMUM WEIGHT OF PILUT, PASSENGERS, FUEL AND BAGGAGE IS NOT TO EXCEED 664 LBS.

In addition to the placards specified above, the prescribed operating limitations in "Powerplant Instrument Markings" on this STC Addendum must also be displayed by permanent markings.

NOTE 3. Noise Characteristics: For this modification the maximum normal operating power has been limited to 180 HP, and 2600 RPM (and 27.2 in.

Hg) which results in no acoustical change, as defined in paragraph

21.93(b) of the Federal Aviation Regulations.

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