Commonwealth legislation

AD/B737/72 - Side of Body Floor Panel Inserts

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Commonwealth

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legislative instrument

Plain English Summary

3/10 complexity

Requires operators of certain Boeing 737-400 and 737-500 aircraft (as listed in Boeing ASB 737-53A1152 Revision 1) to inspect side-of-body floor panels forward of Body Station 887 to confirm manufacturer and manufacture date. Hexcel-made panels dated before 7 January 1991 must be replaced or have one-piece inserts repaired before further flight. The directive says this prevents panels breaking away during a 9g forward load; compliance will require inspections, possible repairs or replacements and may cause temporary grounding.

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AD/B737/72 - Side of Body Floor Panel Inserts

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Boeing 737 Series Aeroplanes

AD/B737/72 Side of Body Floor Panel Inserts 12/92

Applicability: Model 737-400 and 737-500 series, as listed in Boeing ASB 737-53A1152, Revision 1.

Requirement: Inspect the side-of-body floor panels forward of Body Station 887 to determine if the panels were manufactured by Hexcel and the date of their manufacture; in accordance with the Accomplishment Instructions of Boeing ASB 737-53A1152 Revision 1.

(a) If the floor panels were not manufactured by Hexcel, or if the floor panels were manufactured by Hexcel on or after 7 January 1991; no further action is necessary.

(b) If the floor panels were manufactured by Hexcel before 7 January 1991, prior to further flight, either replace the floor panels or repair all one-piece inserts in the panels, in accordance with Boeing ASB 737-53A1152 Revision 1.

Note: FAA AD 92-16-01 Amdt 39-8310 refers.

Compliance: Prior to 8 September 1994.

Background: The FAA has received reports of disbonded one-piece inserts being found in certain side-of-body floor panels. The actions specified in this Directive are intended to prevent floor panels from breaking away from floor structure during a 9g forward load event.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

1 AD/B737/72 - Side of Body Floor Panel Inserts