Service Bulletin for Piper PA-32 6X / 6XT

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Piper Piper Aircraft, Inc. 2926 Piper Drive Vero Beach, Florida, U.S.A. 32960 SERVICE NO. 1251 BULLETIN PIPER CONSIDERS COMPLIANCE MANDATORY Date: April 10, 2013 SUBJECT: MODELS AFFECTED: PA-28-140 Cherokee Cruiser PA-28-150 Cherokee STABILATOR TRIM BARREL INSPECTION SERIAL NUMBERS AFFECTED: All All PA-28-160 Cherokee All PA-28-180 Cherokee All PA-28S-160 Cherokee All PA-28S-180 Cherokee All PA-28-235 Cherokee Pathfinder All PA-28-236 Dakota All PA-28-151 Warrior All PA-28-161 Cadet All PA-28-161 Warrior II All PA-28-161 Warrior III 2816110 thru 2816119; 2842001 thru 2842387 PA-28-180 Archer PA-28-181 Archer II All All PA-28-181 Archer III 2890206 thru 2890231; 2843001 thru 2843700 PA-28-201T Turbo Dakota All PA-28R-180 Arrow All PA-28R-200 Arrow All PA-28R-200 Arrow II All PA-28R-201 Arrow III PA-28R-201T Turbo Arrow III 28R-7737002 thru 28R-7837317; 2837001 thru 2837061; 2844001 thru 2844145 All PA-32-260 Cherokee Six All PA-32-300 Cherokee Six All PA-32S-300 Cherokee Six Seaplane All PA-32R-300 Lance All PA-32R-301 Saratoga SP PA-32R-301 Saratoga II HP 32R-8013001 thru 32R-8613006; 3213001 thru 3213028; 3213030 thru 3213041 3213029; 3213042 thru 3213103; 3246001 thru 3246217; 3246219; 3246223 3246218; 3246220 thru 3246222; 3246224 thru 3246244 PA-32R-301T Turbo Saratoga SP 3229001 thru 3229003 PA-32-301 Saratoga All PA-32-301T Turbo Saratoga All PA-32R-301T Saratoga II TC 3257001 thru 3257493 PA-32-301FT Piper 6X 3232001 thru 3232074 PA-32-301XTC Piper 6XT 3255001 thru 3255051 ATA: 5755 (OVER) SERVICE BULLETIN NO. 1251 PAGE 2 of 6 COMPLIANCE TIME: APPROVAL: PURPOSE: CAUTION: To coincide with next regularly scheduled maintenance event, but not to exceed the next one hundred (100) hours time in service. The technical content of this Service Document has been shown to comply with the applicable Federal Aviation Regulations and is FAA approved. To provide instructions for identifying, replacing, and returning an incorrect vendor supplied stabilator trim barrel. Left uncorrected, an incorrect stabilator trim barrel could lead to accelerated wear and eventual failure of the stabilator trim cable. IN THE EVENT THAT A STABILATOR TRIM CABLE SHOULD FAIL, REGARDLESS OF THE CAUSE, THE STABILATOR TRIM TAB WILL REMAIN FROZEN IN PLACE UNTIL REPAIRS ARE COMPLETED. IF THIS CONDITION OCCURS DURING FLIGHT, OPERATORS SHOULD DISCONNECT THE AUTOPILOT, AND EXPECT TO EXPERIENCE AN INCREASE IN PITCH CONTROL FORCES WHEN MAKING CHANGES TO AIRCRAFT CONFIGURATION OR AIRSPEED. INSTRUCTIONS: Part I. 1. 2. Applicability Determination Some of the aircraft listed in the MODELS AFFECTED section of this service bulletin may have been delivered from the factory with an incorrectly manufactured stabilator trim barrel, Piper part number (P/N) 63530-000. For those aircraft, as identified below, direct examination of the stabilator trim barrel is required. Proceed to Part II. AIRCRAFT MODEL PA-28-161 Warrior III PA-28-181 Archer III PA-28R-201 Arrow III SERIAL NUMBER RANGE 2842373 thru 2842387 2843699 thru 2843700 2844145 For all other aircraft listed in the MODELS AFFECTED section of this service bulletin, review service history records to determine if the factory original stabilator trim barrel has ever been replaced. • • Part II. If the stabilator trim barrel, Piper P/N 63530-000, was replaced at any time after 01/01/2012, there is a potential that the stabilator trim barrel is an incorrect part. Direct examination of the stabilator trim barrel is required. Proceed to Part II. If the stabilator trim barrel has never been replaced, or if the stabilator trim barrel was replaced prior to 01/01/2012, there is no need for an inspection. Proceed to Part IV. Inspection 1. Remove the tailcone access panel, retaining all hardware for reinstallation. NOTE: 2. Removal of the aft stabilator trim cable is not required to accomplish this inspection. Identify the stabilator trim barrel and examine the routing of the stabilator trim cable at the locations shown in Figure 1. Additionally, compare the installed trim barrel against the CORRECT and INCORRECT trim barrel details shown in Figure 2. NOTE: A correct trim barrel is distinguished by visual examination of the stabilator trim cable at the locations where the cable passes through the slots in the upper and lower flanges of the trim barrel. A correct trim barrel will feature diagonally machined grooves in the flange to accommodate the cable routing. The installed cable is nested into these grooves, reducing cable strain. An incorrect trim barrel will have these diagonally machined grooves located on the opposite side of the slot from the cable routing. • • If the geometry of the stabilator trim barrel matches the illustrations marked "CORRECT" in Figure 2, then the stabilator trim barrel is acceptable for continued use. Reinstall the tailcone access panel, and proceed to Part IV. If the geometry of the stabilator trim barrel matches the illustration marked "INCORRECT" in Figure 2, replacement of the stabilator trim barrel and aft stabilator trim cable is required. Proceed to Part III. SERVICE BULLETIN NO. 1251 PAGE 3 of 6 Part III. Replacement 1. 2. 3. 4. Order replacement stabilator trim barrel, as well as replacement aft stabilator trim cable. Refer to the MATERIAL REQUIRED section of this service bulletin for the appropriate replacement part numbers. Using instructions in the appropriate maintenance manual, remove the incorrectly manufactured stabilator trim barrel and aft stabilator trim cable. Return both parts to Piper for examination. Using instructions in the appropriate maintenance manual, install, rig and adjust the new stabilator trim barrel and aft stabilator trim cable. Reinstall the tailcone access panel, and proceed to Part IV. Part IV. Documentation of Compliance Make a logbook entry indicating compliance with this service bulletin. MATERIAL REQUIRED: TABLE 1 NOTE: Stabilator trim barrel inspection replacement parts Qty Piper Part Number 1 (on condition)