# Proposed AD FAA-2008-1240: Hawker Beechcraft Corporation Model BH.125 Series 600A Airplanes and Model HS.125 Series 700A Airplanes Modified in Accordance With Supplemental Type Certificate (STC) SA2271SW

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2009-08-04
- Products: Hawker Beechcraft
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 26, 2008, 73 FR 71959
- Comments due: January 12, 2009
- Became: [AD 2009-08-04](https://openairdocs.org/ad/2009-08-04)
- Docket: FAA-2008-1240 (https://www.regulations.gov/docket/FAA-2008-1240, where comments are filed)
- Project: 2008-NM-098-AD
- FR document: E8-28168
- Official PDF: https://openairdocs.org/files/sha256/4d/f6/4df6adde1e784d2f6d516752ab542a699bc17750a705f8cb91687b14d9a68a24 (from https://www.govinfo.gov/content/pkg/FR-2008-11-26/pdf/E8-28168.pdf)
- Federal Register: https://www.federalregister.gov/documents/2008/11/26/E8-28168/airworthiness-directives-hawker-beechcraft-corporation-model-bh125-series-600a-airplanes-and-model
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/59B59FF473F8DB518625750D0051DAB1.0001
- Page: https://openairdocs.org/proposed/FAA-2008-1240

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Hawker Beechcraft Corporation Model BH.125 series 600A airplanes and Model HS.125 series 700A airplanes. This proposed AD would require inspecting the wiring diagrams containing the cockpit blowers and comparing with the current airplane configuration, and reworking the wiring if necessary. This proposed AD results from a report indicating that a blower motor of the cockpit ventilation and avionics cooling system seized up and gave off smoke. We are proposing this AD to prevent smoke and fumes in the cockpit in the event that a blower motor seizes and overheats due to excessive current draw.

## Notices in this docket

- Nov 26, 2008: Notice of proposed rulemaking (NPRM). (first notice), FR document E8-28168, comments due Jan 12, 2009 (https://www.federalregister.gov/documents/2008/11/26/E8-28168/airworthiness-directives-hawker-beechcraft-corporation-model-bh125-series-600a-airplanes-and-model)

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