AD 47-21-11

Airworthiness directive · Firewall Stud Bushings · Sky Enterprises RC-3

Model
RC-3
Data sheet
TCDSA-769
Registered aircraft
126 matched by model
Product
Aircraft · Small airplane

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 May 30, 2024.

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The airworthiness directive

47-21-11 REPUBLIC: (Was Mandatory Note 1 of AD-769-2.) Applies to Model RC-3 Aircraft Serial Numbers 5 to 174, Inclusive.

Compliance required prior to July 1, 1947.

In order to prevent short circuiting of terminal studs on the firewall, remove each stud, enlarge the hole (0.316 drill) and insert a bushing (P/N 17F82080-1).

(Republic Seabee Service Bulletin No. 1, dated December 18, 1946, covers this same subject.)

Affected TCDS · 1

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

Registered aircraft · 126

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
  • Republic122 aircraft
  • Downer2 aircraft
  • Republic Aviation Corp USA1 aircraft
  • Simuflight Seattle-1-Stol1 aircraft
By year built
19461962
Registered aircraft by year built: 93 aircraft
194619
194773
19621

33 with no year recorded

By model

Aircraft

See all 126 aircraft