AD 88-20-01

Airworthiness directive · Firewall Material · Textron A36, B36TC and F33A

Effective
October 19, 1988
Models
A36, B36TC, F33A
Data sheet
TCDS3A15
Registered aircraft
3,641 matched by model
Product
Aircraft · Small airplane
Amendment
39-6017

Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed January 21, 2026.

On this page

The airworthiness directive

88-20-01 BEECH: Amendment 39-6017. Applies to the following airplanes certificated in any category:

MODEL SERIAL NUMBER F33A CE-1162 through CE-1223 A36 E-2383 through E-2405 E-2407 through E-2409 B36TC EA-468 through EA-470 EA-472 through EA-474

Compliance: Required within the next 100 hours time-in-service after the effective date of this AD, unless already accomplished.

To prevent a potential fire in the cabin, accomplish the following:

(a) Remove the Mortell 931 sound deadener material from the aft side of the firewall in accordance with the instructions in Beech Service Bulletin Number 2249, dated April 1988.

(b) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished.

(c) An equivalent means of compliance with this AD may be used if approved by the Manager, FAA, Wichita Aircraft Certification Office, 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas 67209; Telephone(316) 946-4400.

All persons affected by this directive may obtain copies of this document referred to herein upon request to Beech Aircraft Corporation, Commercial Service, Dept. 52, P.O. Box 85, Wichita, Kansas 67201-0085; or may examine this document at the FAA, Office of the Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106.

This amendment, 39-6017, becomes effective on October 19, 1988.

Affected TCDS · 1

The type certificate data sheets for the models this AD names, matched by model and maker.

Registered aircraft · 3,641

Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.

By aircraft maker
  • Beech3,110 aircraft
  • Raytheon530 aircraft
  • Beech/Goedkerj L1 aircraft
By year built
19692007
Registered aircraft by year built: 3,236 aircraft
19697
197043
197156
197272
1973113
1974100
1975140
1976148
1977197
1978200
1979165
1980117
1981136
1982118
198386
1984103
198574
198657
1987101
1988121
198996
1990119
1991122
199272
199385
199490
199556
199643
199772
199866
199966
200067
200163
200230
20038
200418
20058
20071

405 with no year recorded

By model

Aircraft

See all 3,641 aircraft