# Proposed AD 98-NM-353-AD: Withdrawal -- Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Withdrawn
- Products: Boeing
- Product type: Aircraft
- Action: Proposed rule; withdrawal.
- Published: August 24, 2001, 66 FR 44561
- Comments due: August 19, 2001
- Docket: 98-NM-353-AD
- FR document: 01-21496
- Official PDF: https://openairdocs.org/files/sha256/a3/23/a32325e1c72cf522a524ac52897465345c393205a1f159497fcdda0fb14ff5b4 (from https://www.govinfo.gov/content/pkg/FR-2001-08-24/pdf/01-21496.pdf)
- Federal Register: https://www.federalregister.gov/documents/2001/08/24/01-21496/airworthiness-directives-boeing-model-737-100--200--300--400-and--500-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/605B73F5565077C486256B2900681F6D.0001
- Page: https://openairdocs.org/proposed/98-NM-353-AD

## Summary

This action withdraws a notice of proposed rulemaking (NPRM) that proposed a new airworthiness directive (AD), applicable to certain Boeing Model 737-100, -200, -300, -400, and -500 series airplanes. That action would have required modification of certain filter module assemblies of the generator control units (GCU). Since the issuance of the NPRM, the Federal Aviation Administration (FAA) has received new data that indicate that the unsafe condition identified in the NPRM does not exist. Accordingly, the proposed rule is withdrawn.

## Notices in this docket

- Mar 5, 1999: Notice of proposed rulemaking (NPRM). (first notice), FR document 99-5431, comments due Apr 19, 1999 (https://www.federalregister.gov/documents/1999/03/05/99-5431/airworthiness-directives-boeing-model-737-100--200--300--400-and--500-series-airplanes)
- Aug 24, 2001: Proposed rule; withdrawal., FR document 01-21496, comments due Aug 19, 2001 (https://www.federalregister.gov/documents/2001/08/24/01-21496/airworthiness-directives-boeing-model-737-100--200--300--400-and--500-series-airplanes)

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