# Proposed AD FAA-2008-1312: Hawker Beechcraft Corporation Models 1900, 1900C, and 1900D Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2009-23-01
- Products: Hawker Beechcraft
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking (NPRM); Reopening of the comment period.
- Published: August 31, 2009, 74 FR 44773
- Comments due: September 30, 2009
- Became: [AD 2009-23-01](https://openairdocs.org/ad/2009-23-01)
- Docket: FAA-2008-1312 (https://www.regulations.gov/docket/FAA-2008-1312, where comments are filed)
- Project: 2008-CE-065-AD
- FR document: E9-20866
- Official PDF: https://openairdocs.org/files/sha256/69/32/6932965706a97dcf3824c958b3f8edb31f2c52116553af846608378e660194af (from https://www.govinfo.gov/content/pkg/FR-2009-08-31/pdf/E9-20866.pdf)
- Federal Register: https://www.federalregister.gov/documents/2009/08/31/E9-20866/airworthiness-directives-hawker-beechcraft-corporation-models-1900-1900c-and-1900d-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/92758A8571966657862576230064D8AF.0001
- Page: https://openairdocs.org/proposed/FAA-2008-1312

## Summary

We are revising an earlier proposed airworthiness directive (AD) that applies to certain Hawker Beechcraft Corporation Models 1900, 1900C, and 1900D airplanes. The earlier NPRM would have required a one- time visual inspection and repetitive ultrasonic inspections of the left and right main landing gear (MLG) actuators for leaking and/or cracks with replacement of the actuator if leaking and/or cracks are found. The earlier NPRM resulted from reports of leaking and cracked actuators. This proposed AD would require the same actions as the earlier NPRM. Since the earlier NPRM, we have identified a MLG overhauled actuator part number and a MLG actuator approved by parts manufacturer approval (PMA) by identicality. We propose to expand the applicability to include airplanes equipped with these additional part numbers. Because this imposes an additional burden over that proposed in the earlier NPRM, we are reopening the comment period to allow the public the chance to comment on these additional MLG actuators.

## Notices in this docket

- Dec 15, 2008: Notice of proposed rulemaking (NPRM). (first notice), FR document E8-29591, comments due Feb 13, 2009 (https://www.federalregister.gov/documents/2008/12/15/E8-29591/airworthiness-directives-hawker-beechcraft-corporation-models-1900-1900c-and-1900d-airplanes)
- Aug 31, 2009: Supplemental notice of proposed rulemaking (NPRM); Reopening of the comment period., FR document E9-20866, comments due Sep 30, 2009 (https://www.federalregister.gov/documents/2009/08/31/E9-20866/airworthiness-directives-hawker-beechcraft-corporation-models-1900-1900c-and-1900d-airplanes)

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