# Proposed AD FAA-2005-20034: McDonnell Douglas Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), DC-10-40, DC-10-40F, MD-10-10F, MD-10-30F, MD-11, and MD-11F Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2006-02-11
- Products: McDonnell Douglas
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 12, 2005, 70 FR 2062
- Comments due: February 28, 2005
- Became: [AD 2006-02-11](https://openairdocs.org/ad/2006-02-11)
- Docket: FAA-2005-20034 (https://www.regulations.gov/docket/FAA-2005-20034, where comments are filed)
- Project: 2004-NM-178-AD
- FR document: 05-615
- Official PDF: https://openairdocs.org/files/sha256/1d/f2/1df29e112b65ecef4e1187f1e43970075e02cf8f01756df6a3ce7b7b3749e7c1 (from https://www.govinfo.gov/content/pkg/FR-2005-01-12/pdf/05-615.pdf)
- Federal Register: https://www.federalregister.gov/documents/2005/01/12/05-615/airworthiness-directives-mcdonnell-douglas-model-dc-10-10-dc-10-10f-dc-10-15-dc-10-30-dc-10-30f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5A5CA58C97260CC086256F87005F400C.0001
- Page: https://openairdocs.org/proposed/FAA-2005-20034

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain McDonnell Douglas transport category airplanes. This proposed AD would require doing repetitive detailed inspections for accumulation of debris (blockage) of the drain holes of the pitot tubes, and cleaning if any evidence of debris is found. This proposed AD is prompted by reports of blocked drain holes of the pitot tubes. We are proposing this AD to prevent blocked drain holes of the pitot tubes, which could result in the accumulation of water in the pitot-static system and consequent failure of that system. Failure of the pitot-static system could result in erroneous airspeed indications in the cockpit and consequent loss of airspeed control.

## Notices in this docket

- Jan 12, 2005: Notice of proposed rulemaking (NPRM). (first notice), FR document 05-615, comments due Feb 28, 2005 (https://www.federalregister.gov/documents/2005/01/12/05-615/airworthiness-directives-mcdonnell-douglas-model-dc-10-10-dc-10-10f-dc-10-15-dc-10-30-dc-10-30f)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.