COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Piper PA-34 (Seneca) Series Aeroplanes
AD/PA-34/48 Flap Handle Attach Bolt 9/96
Applicability: Models Serial Numbers
PA-34-200 34-7250001 through 34-7450220
PA-34-200T 34-7570001 through 34-8170092
PA-34-220T 34-8133001 through 34-8233088
Requirement: a) Measure the cable mounting attach hole diameter and enlarge the hole to .316 of an inch diameter. If the diameter of the cable mount attach hole is larger than
.316 of an inch, replace the flap lever handle (refer to the illustrated parts catalogue for the part number), in accordance with the Instructions section of Piper SB 965.
b) Install a new bushing (using only Piper part number (P/N) 63900-174) into the cable mounting attach hole, in accordance with the Instructions section of Piper SB 965.
c) Replace the flap lever handle attach bolt with a new clevis bolt (Piper P/N 400 673 or standard P/N AN23-11) in accordance with the Instructions section of Piper SB 965.
d) Inspect the washer, nut, and cotter pin, and if damaged, replace washer (Piper P/N 407-564 or standard P/N AN960-10), nut (Piper P/N 404-392 or standard P/N AN320-3), and cotter pin (Piper P/N 424-051 or standard P/N MS24665- 132) in accordance with the Instructions section of Piper SB 965.
Note 1: FAA AD 96-10-03 Amdt 39-9608 refers.
Note 2: The Requirement instructions of this Directive do not mirror the instructions in Piper SB 965. This Directive requires installing the clevis bolt, regardless of the condition of the current part.
Compliance: Upon the accumulation of 2,000 hours time in service or within the next 100 hours time in service after 15 August 1996, whichever occurs later.
Background: The FAA received reports of worn flap handle attach bolts and elongated holes in the flap lever to cable mounting attach point. Failure of the flap handle attach bolt could cause a sudden retraction of the flaps, and result in loss of control.