# Proposed AD FAA-2008-0353: Hawker Beechcraft Corporation Model 390 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2008-16-02
- Products: Hawker Beechcraft
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 25, 2008, 73 FR 15678
- Comments due: May 27, 2008
- Became: [AD 2008-16-02](https://openairdocs.org/ad/2008-16-02)
- Docket: FAA-2008-0353 (https://www.regulations.gov/docket/FAA-2008-0353, where comments are filed)
- Project: 2007-CE-101-AD
- FR document: E8-5959
- Official PDF: https://openairdocs.org/files/sha256/f9/34/f934b3c1dcfb546d6ed1f0f840bf936f0e2dcbc942c4cac55cf5fa74e4676455 (from https://www.govinfo.gov/content/pkg/FR-2008-03-25/pdf/E8-5959.pdf)
- Federal Register: https://www.federalregister.gov/documents/2008/03/25/E8-5959/airworthiness-directives-hawker-beechcraft-corporation-model-390-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/204682E3CD767D5586257417004B0658.0001
- Page: https://openairdocs.org/proposed/FAA-2008-0353

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Hawker Beechcraft Corporation Model 390 airplanes. This proposed AD would require you to repetitively do a post-flight check (owner/operator holding at least a private pilot certificate checking for residual heat in the angle-of-attack (AOA) probes or an appropriately-rated mechanic doing a maintenance manual operational test of the heat of the AOA probes) after every flight and replace or modify (upload software) the stall warning AOA transmitters. This proposed AD results from reports of the potential for unannunciated loss of the heating function in the left-hand (LH) and right-hand (RH) stall warning AOA transmitters of Model 390 airplanes. We are proposing this AD to correct potentially inadequate stall warning with loss of stick pusher function.

## Notices in this docket

- Mar 25, 2008: Notice of proposed rulemaking (NPRM). (first notice), FR document E8-5959, comments due May 27, 2008 (https://www.federalregister.gov/documents/2008/03/25/E8-5959/airworthiness-directives-hawker-beechcraft-corporation-model-390-airplanes)

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