Airworthiness Directive · Amendment 39-19719 · Fuselage main frame
Airbus Helicopters Deutschland GmbH Helicopters
This AD applies to Airbus Helicopters Deutschland GmbH Model MBB-BK 117 C-2 helicopters, certificated in any category.
The FAA is publishing a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH Helicopters (Airbus) Model MBB- BK 117 C-2 helicopters. Emergency AD 2019-10-51 was sent previously to all known U.S. owners and operators of these helicopters. This AD requires, for certain helicopters, inspecting the fuselage frame and providing certain information to the FAA. This AD also prohibits installing certain components as part of Supplemental Type Certificate (STC) SR00592DE on any helicopter. This AD was prompted by reports of fatigue cracks in the fuselage frame. The FAA is issuing this AD to address the unsafe condition on these products.
(1) For helicopters with serial numbers 9069, 9185, 9255, 9377, 9389, 9403, 9411, 9457, 9529, or 9637, before further flight:
(i) Remove the recessed medical wall rack in accordance with Part 1, paragraphs 4.1. through 4.3., of Air Methods Alert Service Bulletin ASB19-03, Revision IR, dated May 6, 2019 (ASB).
(ii) Inspect the fuselage frame box beam structure for cracks and loose rivets at station 4135 in accordance with Part 2, paragraphs 5.1 through 5.4., of the ASB, except you are not required to contact Air Methods for disposition if cracks are found. Instead, if there is a crack, repair using a method approved by the Manager, Denver ACO Branch, Compliance & Airworthiness Division, FAA, 26805 East 68th Ave., Room 214, Denver, CO 80249; telephone (303) 342-1081; email: 9 Denver-Aircraft-Cert@faa.gov. Replace any loose rivets.
(iii) If there are no cracks, reinstall the inboard web of the box beam and the cabin interior panels in accordance with Part 2, paragraphs 5.5. and 5.6. of the ASB. Do not reinstall the recessed medical wall rack.
(2) For helicopters with serial numbers 9069, 9185, 9255, 9377, 9389, 9403, 9411, 9457, 9529, or 9637, within 10 hours time-in-service (TIS) after the required inspections, provide the inspection results, photographs of inspected areas, total helicopter hours TIS since installation of Supplemental Type Certificate (STC) SR00592DE, and helicopter serial number to the attention of the person identified in paragraph (j) of this AD. This information is required even if there are no cracks.
(3) For all helicopters, after the effective date of this AD, do not install on any helicopter recessed medical wall assembly part number (P/N) 778-1400-001, wall mount fittings P/N 900-9959-001, aft medical wall doubler P/N 900-9989, and medical wall long doubler P/N 900-6021 at stations 4135 and 4963.19 as part of STC SR00592DE.
A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a currently valid OMB Control Number. The OMB Control Number for this information collection is 2120-0056. Public reporting for this collection of information is estimated to be approximately 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to: Information Collection Clearance Officer, Federal Aviation Administration, 10101 Hillwood Parkway, Fort Worth, TX 76177-1524.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
