N3904L

Part: TRANSCEIVER — INTERMITTENT (VHF COMM)

TRANSCEIVER BLINKS OFF INTERMITTENTLY ON LED SCREEN. PERFORMED PRELIMINARY INSPECTION. REPLACED DISPLAY BOARD AND 3 HEADERS. DISPLAY STILL BAD.

Part: VOLT REGULATOR — FAILED (DC SYSTEM)

GENERATOR DROPS OFF LINE.

Part: WHEEL — MISMANUFACTURED (ADAPTER SPLINE)

NEW PART ASSEMBLY INSPECTION REVEALED 19-24 SHOULDER TO SHAFT END DIMENSION APPROX: .0025 INCH UNDERSIZED CAUSING ROTOR TO NOT MEET TRAVEL AT ASSEMBLY.

Part: INDICATOR — STUCK (TOT)

NEEDLE STICKS AT ZERO ON TOT INDICATOR.

Part: SHAFT — FAILED (T/R)

THE AIRCRAFT LOST DIRECTIONAL CONTROL DURING LANDING TO AN OFFSHORE PLATFORM. THE PILOT WAS ABLE TO EXECUTE A SUCCESSFUL AUTOROTATIONAL LANDING TO THE PLATFORM WITHOUT CAUSING DAMAGE TO THE AIRCRAFT. INVESTIGATION OF THE INCIDENT REVEALED THAT THE BONDED COUPLING ON THE NR 5 TAIL ROTOR DRIVESHAFT FAILED. ENGINEERING EVALUATION OF THE SHAFT REVEALED THAT THE SHAFT HAD APPARENTLY BEEN SUBJECTED TO SAND BLASTING, WHICH, IN TURN, MAY HAVE LED TO THE DISBONDING OF THE COUPLING.

Part: INDICATOR — STUCK (GAS PROD)

GAS PROD GAGE NEEDLES STICK AT ZERO AT ANY SETTING.

Part: POWER SUPPLY — FAILED (STROBE)

STROBE WILL NOT FLASH.

Part: SKYNAV 5000 — MALFUNCTION (COCKPIT GPS)

WAYPOINTS INDICATE A HEADING ABOUT 180 DEGREES OUT.

Part: FUEL CELL — LEAKING (FUEL SYS)

CELL LEAKING.

Part: BATTERY — WEAK (DC SYS)

BATTERY IS WEAK.

Part: CYLINDER — LEAKING (M/R SERVO)

CYLINDER LEAKING.

Part: PANEL ASSY — MIS MFG (FUSELAGE)

INSERTS DON'T LINE UP WITH ACCESS PANEL AS MARKED.

Part: CYLINDER (HR) — LEAKING (SERVO SYS)

OUTPUT SHAFT SEAL LEAKING AND TORN.

Part: PANEL ASSY — MIS REPAIRED (FUSELAGE)

PANEL ASSY CORE TOO LONG AT CENTER OF PANEL WHERE FUEL LINE COVER NUT PLATES NEED TO BE INSTALLED.

Part: PANEL ASSY — MIS MFG (CABIN)

AFT EDGE OF PANEL WAS TRIMMED OFF OF NEW PANEL APPROXIMATELY 5/8". INSERT IN CORNER OF PANEL NOT IN CORRECT LOCATION.

Part: ROOF PANEL — DAMAGED (RT AFT OUTB)

PANEL CORE CRUSHED AND TORN AS MARKED AROUND INSERTS ON UNDERSIDE OF PANEL. INSERTS AS MARKED ON TOP OF PANEL DO NOT LINE UP WITH ORIGINAL PANEL. INSERTS NOT BONDED. R/H AFT OUTBOARD AS MARKED CUT IN RADIUS. HOLE FOR PLUMB BOB FILLED WITH ADHESIVE.INSERTS FILLED WITH ADHESIVE.

Part: ROOF PANEL — MIS MFG (RT FWD)

TRANSITION HITS IN SEVERAL AREAS - NO EDGE DISTANCE ON R/H FORWARD OUTER EDGE. AREAS WHERE TRANSITION HITS CABIN STRUCTURE DOES NOT ALLOW PANEL TO SIT FLAT ON BOX BEAM.

Part: TUBE ASSY — CORRODED (M/R CONTROL)

PART IS CORRODED. (CORROSION OCCURING UNDER NYLATRON SLEEVES ON ENDS WHERE BONDING STARTS. REPLACED WITH SERVICEABLE TUBE.

Part: SUPPORT ASSY — CORRODED (T/R CONTROL)

PART IS CORRODED. (CORROSION AROUND BASE OF PEDAL SUPPORT) REPLACED WITH SERVICEABLE PART.