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FAA orders · airworthiness directive · current

98-23-01: Dry Air Pumps, Conversion Kits, and Coupling Kits

FAA order 98-23-01 is an airworthiness directive. The FAA's subject line: Dry Air Pumps, Conversion Kits, and Coupling Kits. System: other and general.

What it applies to as the FAA lists it

Kind of product
Appliance
Makes
Parker Hannifin Corporation
Models
Dry Air Pumps, Conversion Kit, Coupling Kit

Dates and paperwork

Docket
98-CE-108-AD
Status
Current
The FAA's document
Read the order on the FAA's site

The order itself the regulatory text, as published

Show the full text (9,154 characters)
98-23-01 PARKER HANNIFIN CORPORATION: Priority Letter issued October 29, 1998. Docket No. 98-CE-108-AD. Applicability: The following Airborne dry air pumps, conversion kits, and coupling kits, with flexible coupling, part number (P/N) B1-19-1, that: 1. Have a date code resembling a clockface on the coupling and indicating a manufacture date of either "12/97" or "5-6/98"; and 2. Are installed in, but not limited to, the following aircraft or engine models, certificated in any category, that are listed in the Appendix to this AD: Item Part Number Serial Numbers Dry Air Pump 211CC 2AP1 through 10AP319 Dry Air Pump 211CC-9 1AP1 through 2AP5 Dry Air Pump E211CC 11AN543 through 11AN642 and 2AP1 through 7AP442 Dry Air Pump 212CW 2AP1 through 7AP286 Dry Air Pump E212CW 1AP1 through 7AP492 Dry Air Pump 215CC 12AN719 through 12AN940 and 1AP1 through 9AP3510 Dry Air Pump 215CC-9 2AP1 through 7AP95 Dry Air Pump 216CW 12AN521 through 12AN660 and 1AP1 through 10AP2695 Conversion Kit 300-1 4AP120 through 4AP122 and 8AP256 through 8AP258 Conversion Kit 300-2 2AP30 through 2AP43, 4AP134, 4AP136, and 4AP137 Conversion Kit 300-3 1AP1 through 1AP3 Coupling Kit 350 1AP through 9AP and N/A (see Note 1 below) NOTE 1: Some of the part number 350 coupling kits incorporated serial numbers 1AP through 9AP, while others were marked with "N/A" in the serial number block. NOTE 2: The affected flexible coupling was shipped from Parker Hannifin between January 1, 1998, and October 13, 1998. Dry air pumps, conversion kits, or coupling kits that were installed or modified prior to January 1, 1998, would not incorporate the affected coupling. This AD allows the aircraft owner or pilot to check the maintenance records to determine whether the dry air pump, conversion kit, or coupling kit was installed or modified since January1, 1998. See paragraph (d) of this AD for authorization. NOTE 3: This AD applies to any aircraft or engine equipped with Airborne dry air pumps, conversion kits, and coupling kits, that have flexible coupling, part number (P/N) B1-19-1. Aircraft or engines with the P/N B1-19-1 flexible coupling are affected regardless of whether they have been modified, altered, or repaired in the area subject to the requirements of this AD. For aircraft or engines that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (f) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it. Compliance: Required as indicated in the body of this AD, unless already accomplished. To prevent failure of the primary dry air pump caused by defective flexible coupling, which could result in loss of primary attitude and direction references during instrument flight rules (IFR) operations, accomplish the following: (a) Within 2 calendar days after receipt of this priority letter AD or prior to further flight after receipt of this priority letter AD, whichever occurs later, replace any affected flexible coupling with P/N B1-7-3 flexible coupling (part of Parker Hannifin flexible coupling kit, Airborne P/N 350) in accordance with Parker Hannifin Airborne Service Letter No. 48, dated October 20, 1998. (b) If parts have been ordered from Parker Hannifin, but are not available, accomplish the following: (1) Operate the aircraft in visual flight rules (VFR) conditions only; (2) Operate the aircraft during daytime hours only; and (3) When parts become available, replace the coupling priorto further flight. (c) As of the receipt of this priority letter AD, no person shall install, on any aircraft or engine, any of the affected Airborne dry air pumps, conversion kits, and coupling kits, with flexible coupling, part number (P/N) B1-19-1, that have a date code resembling a clockface on the coupling and indicating a manufacture date of either "12/97" or "5-6/98". (d) The owner/operator holding at least a private pilot certificate as authorized by section 43.7 of the Federal Aviation Regulations (14 CFR 43.7) may check the maintenance records to determine whether the existing dry air pump, conversion kit, or coupling kit was installed or modified since January 1, 1998. If the dry air pump, conversion kit, or coupling kit was not installed or modified since January 1, 1998, the AD does not apply and the owner/operator must make an entry into the aircraft records showing compliance with this AD in accordance with section 43.9 of the Federal Aviation Regulations (14 CFR 43.9). (e) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished, provided that: (1) The aircraft is operated in VFR conditions only; and (2) The aircraft is operated during daytime hours only. (f) An alternative method of compliance or adjustment of the compliance times that provides an equivalent level of safety may be approved by the Manager, Chicago Aircraft Certification Office (ACO), 2300 E. Devon Avenue, Des Plaines, Illinois 60018. The request shall be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Chicago ACO. NOTE 4: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Chicago ACO. (g) Copies of the applicable service information may be obtained from the Parker Hannifin Corporation, Airborne Division, 711 Taylor Street, Elyria, Ohio 44035; telephone: (440) 937-1315; facsimile: (44) 937-5409. This information may also be examined at the FAA, Central Region, Office of the Regional Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri 64106. (h) Priority Letter AD 98-23-01, issued October 29, 1998, becomes effective immediately upon receipt. APPENDIX TO AD 98-23-01; DOCKET NO. 98-CE-108-AD Part Name Part Number Airplane/Engine Make/Model Dry Air Pump 211CC AIRPLANES 215CC Aerospatiale / TB9, TB10, TB20 E211CC Beech / 19, 19A, B19, 23, B23, C23, 24, A24, A24R, B24R, C24R, 76, 77, E95 Cessna / F152, FA152, 172, FR172K, R172K, 177, 177RG, FR182, R182, TR182, T182, T303, 336, 337, F337, T337G, P337, FT337, 411, 411A, 421A, 421B, 421C Grumman / AAA1B, AA1C, AA5A, AA5B, GA7 Lake / LA-4-200, 250 Maule / M4-210 Mooney / M20B, M20C, M20D, M20E, M20F, M20G, M20J, M20K Navion / G, H Piper / PA-18, PA18-150, PA-22-108, PA-23-235, PA-23-250, PA-24-180, PA-24-250, PA-24-260, PA-24-400, PA-28-140, PA-28-150, PA-28-151, PA-28-160, PA-28-161, PA-28-180, PA-28R-180, PA-28-181, PA-28R-200, PA-28-201T, PA-28R-201, PA-28R-201T, PA-28RT-201, PA-28RT-201T, PA28-235, PA-28-236, PA-30, PA-31-300, PA-31-310, PA-31-325, PA-31-350, PA-31P-350, PA-32-260, PA-32-300, PA-32R-300, PA-32RT-300, PA-32RT-300T, PA-32-301, PA-32-301T, PA-32R-301, PA-32R-301T, PA-34-200, PA-34-200T, PA-38-112, PA-39, PA-44-180, PA-44-180T Rockwell / 100, 112, 112A, 112B, 112TC, 112TCA, 114, 114A, 180 Lovaux Ltd. / Optica OA7, Series 300 (FLS Aerospace) ENGINES Textron Lycoming / O-235, O-290, O-320, O-360, O-435, O-540, IO-320, IO-360, IO-540, IO-720, TIO-360, TIO-540, GO-480, GSO-480 Continental / O-300, GO-300, IO-360, TSIO-360, TSIO-520, GTSIO-520 United Aircraft / PT6A, PT6B Dry Air Pump 211CC-9 AIRPLANES 215CC-9 Cessna / 150, A150K, A150L, A150M, F150K, F150L, F150M, FA150K, FA150L, FA150M, 152, A152, 172, 177, 337 ENGINES Textron Lycoming / O-320 Continental / C90-16, O-200 Dry Air Pump 212CW AIRPLANES E212CW Beech / A23, A23A, E33, E33A, F33A, F33C, V35A, V35A-TC, 216CW 36, A36, A36TC, B36TC, B55, 58, 76, Britten Norman / BN-2A Cessna / 152, A152, 172, 180, 182H thru M, 182N and P, F182, R182, TR182, T182, 185, U206, TU206, 207, T207, 210, T210, P210, T303, 310P, 310R, 335, 340, 340A, 401, 401A, 401B, 402, 402A, 402B, 414, 414A Helio / H295 Maule / M4-220 Mooney / M20K, M22 Navion / G, H Piper / PA-31-325, PA-31-350, PA-31P-350, PA-34-200, PA-34-200T, PA-39, PA-44-180, PA-44-180T, PA-46-310P, PA-46-350 ENGINES Textron Lycoming / LIO-360, GO-435, TIO-541 Continental / E-185, E-225, IO-346, O-470, IO-470, TSIO-470, IO- 520 Franklin / 6A-335, 6A-350 Conversion Kit 300-1 Cessna / 172A, 172B thru 172H Piper / PA-22-108, PA-22-135, PA-22S-135, PA-22-150, PA-22S-150, PA-22-160, PA-22S-160 Conversion Kit 300-2 Beech / 35 thru S35, 35-33 thru35-A33, 35-B33 Cessna / 175 thru 175A, 175B, 175C, P172D, 180 thru 180H, 182 thru 182H, 185 thru 185D, 210, 210A thru 210J, 210-5, 210-5A Conversion Kit 300-3 Cessna / 150, 150A thru 150H Coupling Kit 350 Coupling kit may have been put on any of the above list airplanes or engines.

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/98-23-01.json · aircraft systems.