86-01-06 AIRBORNE DIVISION, PARKER HANNIFIN CORPORATION: Amendment 39-5206. Applies to the following Airborne Dry Air Pumps and Auxiliary Dry Air Pumps installed on piston engine airplanes certificated in any category:
AIRBORNE PART NUMBER
SERIAL NUMBERS
Dry Air Pumps
241CC-13
10AA30 thru 10AA36 and 10AA38
242CW
10AA281 thru 10AA293
441CC
9AA260 thru 9AA288 9AA291, 9AA294, 9AA295
441CC-7
9AA929 thru 9AA-949 9AA953, 9AA954, 9AA956, 9AA957, 9AA959
442CW
9AA850 thru 9AA875, 9AA880 thru 9AA886, 9AA888 thru 9AA903, 9AA905 thru 9AA921, 9AA928, 9AA934, 9AA936, 9AA939, 9AA940, 9AA945 thru 9AA952, 9AA955 thru 9AA958, 9AA962 thru 9AA967
442CW-4
10AA173 thru 10AA179 10AA182 thru 10AA199 10AA201, 10AA202
442CW-12
10AA356, 10AA357, 10AA386, 10AA389
Auxiliary Dry Air Pumps
4A2-1
9AA44 thru 9AA46
4A3-1
9AA56, 9AA59 thru 9AA66, 9AA73, 9AA79 thru 9AA82, 10AA83 thru 10AA88, 10AA90 thru 10AA94, 10AA96, 10AA114, 10AA126, 10AA130, 10AA131, 10AA132, 10AA138, 10AA150, 10AA154, 10AA155, 10AA159, 10AA161
NOTE: These pumps were not available for installation before September 1, 1985. Therefore, new Airborne Dry Air Pumps or Auxiliary Dry Air Pumps installed previous to that date are exempt from this AD. Pumps that have been reworked by Airborne will have a white date code stamped on the pump housing near the discharge port. This will indicate that the pump complies with this AD.
COMPLIANCE: Required as indicated, unless previously accomplished. To prevent premature failure of the Airborne Dry Air and Auxiliary Dry Air Pumps, accomplish the following:
(a) For Dry Air Pumps P/N's 241CC-13, 242CW, 441CC, 441CC-7, 442CW, 442CW-4, and 442CW-12, prior to further flight in IFR conditions, inspect installed dry air pump(s) to determine if one of the subject pumps is installed.
(1) If one of these pumps is installed, and if the airplane is equipped for IFR flight, fabricate using minimum 0.10 inch letters, and install a placard in full view of the pilot which states; "FLIGHT IN IFR CONDITIONS PROHIBITED", and operate in accordance with this limitation.
(2) And within 15 days of the effective date of this AD, replace the subject pump and remove the placard. Return pump to Airborne as described in Airborne Service Letter No. 30, dated November 11, 1985.
(b) For Airborne Auxiliary Dry Air Pump P/N 4A2-1 or 4A3-1, prior to further flight in IFR conditions, inspect the auxiliary dry air pump if installed, to determine if one of the subject pumps is installed.
(1) If one of these pumps is installed, fabricate using a minimum of 0.10 inch letters and install a placard in full view of the pilot which states;
"STANDBY VACUUM SYSTEM MAY BE INOPERATIVE DUE TO VACUUM PUMP MALFUNCTION".
(2) And within 30 days of the effective date of this AD, replace the subject pump and remove the placard. Return pump to Airborne as described in Airborne Service Letter No. 30, dated November 11, 1985.
(c) Aircraft may be flown in accordance with FAR 21.197 to a location where this AD can be accomplished.
(d) An equivalent method of compliance with this AD, if used, must be approved by the Manager, Chicago Aircraft Certification Office, 2300 East Devon Avenue, Room 232, Des Plaines, Illinois 60018, Telephone (312) 694-7357.
All persons affected by this directive may obtain copies of the documents referred to herein upon request to Betty Annable, Parker Hannifin Corp., Airborne Division, 711 Taylor Street, Elyria, Ohio 44036 or the FAA, Rules Docket, Office of the Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106.
This amendment becomes effective on January 31, 1986.