N525UP
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
48 reports on file, 2001-03-12 – 2003-10-18.
Part: ATTACH FITTING — CRACKED (NR 2 PYLON) · airframe 80,338 hrs · 15,279 cycles
INSPECTION TYPE: C, NR 2 PYLON DIAGONAL BRACE STEEL ATTACH FITTING HORIZONTAL FLANGE ATTACH BOLTS 6EA TORQUE CHECK FOUND LOOSE AS MARKED. THE BOLT HOLE ID MEASURED, NR 5, 7, 9 ARE 0.314 INCH NR 8, 10 ARE 0.313 INCH & NR 15 IS 0.316 INCH NDT HFEC INSP CONFIRMED CRACK FREE PER NTM PT6, 51-00-00 FIG 17. ONLY NR 5, 7, 9 & 15 BOLT HOLES WERE REAMED TO 0.328 INCH PER SB747A2196 & OVERSIZE BOLTS OF THESE 4 BOLT HOLE WERE INSTALLED & STANDARD BOLTS FOR BOLT HOLE NR 8 & 10 WERE REFITTED PER SB747A2196R.
Part: SKIN — CRACKED (FUSELAGE) · airframe 80,338 hrs · 15,279 cycles
INSPECTION TYPE: C, DURING RAP INSPECTION ITEM N525UP-42-03 AT BS 600-620 STR 39R-40R FWD CARGO DOOR LOWER EDGE AREA REPAIR FASTENER ROWS LESS THAN 2 ROWS. REPAIR REQ'D AT BS 600-620 S39R-40R FWD CARGO DOOR LOWER EDGE EXTERIOR PREVIOUSLY DOUBLER REMOVED AS PER SRM 51-30-02. ALL FASTENER HOLES AND DOOR SKIN REPAIR CUTOUT NDT BHFC & HFEC ACCOMPLISHED AS PER NTM PT.6 51-00-00 FIG 16 & 4. NO CRACK FOUND. DOOR SKIN REPAIR DOUBLER FABRICATED & INSTALLED AS PER SRM 52-30-06 FIG 1.
Part: BULKHEAD — CORRODED (LT MLG WW) · airframe 80,338 hrs · 15,279 cycles
INSPECTION TYPE: C, LT MLG WW BS 1241 BULKHEAD CORRODED AT WL 143 BETWEEN LBL 1 & 3 AREA AS MARKED. CORROSION REMOVED IAW SRM 51-10-01, CORROSION BLEND OUT 0.059 X 1 X 1 INCH EXCEED SRM 57-10-01 FIG 1 LIMITS, FOR REPAIR REFER TO RS R57-12-35092 & UPS AUTH 747-57-20049. CIC APPLIED IAW EO M5100 -2780-E.
Part: FASTENER — CRACKED (FUSELAGE) · airframe 80,338 hrs · 15,279 cycles
INSPECTION TYPE: C, RT BS 1480 BULKHEAD - ONE EACH FASTENER NR 5 WAS CRACKED AT EXTENSION FITTING AREA RUNNING AFT APPROX 0.040 INCH LONG. REF RS R53-43-35093 & EO B747-5310-19423A RT BS 1480 BULKHEAD SPLICE EXTENSION FTG NR 5 HOLE OVERSIZED TO 0.625 INCH & HFEC CONFIRMED NO CRACK REPAIR BUSHING FABRICATED AND INSTALLED NR 5 BOLT REPLACED THE HOLE DIAMETER EDGE/END MARGIN REF RS TABLE 1. THE BS 1480 BULKHEAD SPLICE HOLES 1 TO 26 REQUIRED REPEAT INSPECTION EVERY 6000 FLT CYCS PER SB747-53A2390.
Part: SKIN — CRACKED (FUSELAGE) · airframe 80,338 hrs · 15,279 cycles
INSPECTION TYPE: C, DURING RAP INSPECTION ITEM N525UP-46-17 BS 1775-1790 AT STR 34R-36R 2EA HOLES SHORT EDGE MARGIN FOUND. BS 1775-1790 S34R-S36R PREVIOUSLY FX SKIN EXTERIOR DOUBLER REMOVED AS PER SRM 51-30-02 AND SKIN CUTOUT ENLARGED AS PER SRM 53-30-03 FIG 1. FASTENER HOLES AND SKIN CUTOUT HFEC ACCOMPLISHED AS PER NTM PART 6 51-00-00 FIG 16 AND FIG 4. NO CRACK FOUND. REPAIR DOUBLER FABRICATED AND INSTALLED AS PER SRM 53-30-03 FIG 1.
Part: SKIN — CRACKED (FUSELAGE) · airframe 80,338 hrs · 15,279 cycles
INSPECTION TYPE: C, DURING RAP INSPECTION ITEM N525UP-41-02 BS 375-390 STR 26L-27L REPAIR DOUBLER WITH TWO REPAIR FASTENER ROWS ONLY REPAIR REQ'D. BS 375-390 S26L-S27L FX SKIN EXTERIOR PREVIOUSLY DOUBLER REMOVED AS PER SRM 51-30-02 AND SKIN CUTOUT ENLARGED AS PER SRM 53-30-03 FIG 1. ALL FASTENER HOLES AND SKIN CUTOUT HFEC ACCOMPLISHED AS PER NTM PART 6 51-00-00 FIG 1 & 4 AND NO DEFECT FOUND. EXTERIOR REPAIR DOUBLER FABRICATED & INSTALLED AS PER SRM 53-30-03 FIG 1.
Part: FASTENER — CRACKED (FUSELAGE) · airframe 80,338 hrs · 15,279 cycles
INSPECTION TYPE:C RIGHT BS 1480 BULKHEAD ONE EACH FASTENER NR 5 WAS CRACKED AT SPLICE FITTING AREA RUNNING AFT APPROX 0.065 INCH LONG. RIGHT BS 1480 BULKHEAD SPLICE FTG NR 5 HOLE OVERSIZED TO 0.625 INCH & HFEC CONFIRMED NO CRACK. REPAIR BUSHING FABRICATED & INSTALLED. NR 5 BOLT REPLACED. THE HOLE DIAMETER & EDGE/END MARGIN REF RS R53-43-35093 & EO B747-5310-19423A. BS 1480 BULKHEAD SPLICE HOLES 1 TO 26 REQUIRED REPEAT INSPECTION EVERY 6000 FLT CYCS PER SB747-53A2390.
Part: BULKHEAD — CORRODED (RT MLG WW) · airframe 80,338 hrs · 15,279 cycles
INSPECTION TYPE: C, RT MLG WW BS 1241 BULKHEAD CORRODED AT WL 143 BETWEEN RBL 1 & 3 AREA AS MARKED. CORROSION REMOVED IAW SRM 51-10-01, CORROSION BLEND OUT 0.116 X 1 X 1 INCH EXCEED SRM 57-10-01 FIG 1 LIMITS, FOR REPAIR REFER TO HX RS R57-12-35092 & UPS AUTH 747-57-20049, CIC APPLIED IAW EO M5100-2780-E.
Part: BULKHEAD — CRACKED (NR 3 PYLON) · airframe 80,338 hrs · 15,279 cycles
INSPECTION TYPE: C, NR 3 PYLON REAR MOUNT BULKHEAD FOUND CRACK AT FWD AND AFT WEB (NAC 221 TO 221). NR 3 PYLON REAR ENG MOUNT BULKHEAD LWR ASSY FRAME WEB INTERIM REPAIR ACCOMPLISHED AS PER RS R54-53-35090 & UPS AUTH 747-54-20043.
Part: FITTING — CORRODED (LT WING) · airframe 80,338 hrs · 15,279 cycles
INSPECTION TYPE: C, CORROSION REVEALED AT LT WING LANDING GEAR SUPPORT BEAM O/B END AFT FITTING FIVE INDICATIONS AT 2, 6, 7, 9, 11 O'CLOCK RESPECTIVELY WERE FOUND EXCEEDED THE 50 PERCENT ACCEPTANCE LIMIT PER NTM PT4. 57-40-03. REMOVAL OF THE FITTING FOR FURTHER INVESTIGATION ACTION IS NECESSARY. LT WLG SUPPORT BEAM O/B END FITTING REPLACED AS PER MM 57-15-01 & LT WING LANDING GEAR RETRACTION CARRIED OUT AS PER MM 32-32-00.
Part: SKIN — CORRODED (FUSELAGE) · airframe 80,338 hrs · 15,279 cycles
INSPECTION TYPE: C, CENTER E&E COMPT DOOR RT SIDE CUTOUT FOUND CORROSION AT BS 800-820 S46R-S47R. CORROSION REMOVED IAW SRM 51-10-01. CORROSION BLEND OUT THROUGH THK, WIDTH 1.5 INCH, LENGTH 4.75 INCH EXCEED SRM 53-30-01 FIG 1 LIMITS FOR REPAIR REF RS R53-21-35091 & UPS EO B747-5330-19424-A. CIC APPLIED. NOTE: POST REPAIR INSPECTION IS REQUIRED. INITIAL INSPECTION THRESHOLD AT 10000 FLIGHTS WITH REPEAT INSPECTION EVERY 3000 FLIGHTS USING LFEC METHOD.
Part: SKIN — CORRODED (FUSELAGE)
DENT AT NOSE ACFT JACK PAD MOUNT PROTRUDING OUTWARD POSSIBLE CORROSION FMS STA 405 STRINGER 38RT. USED LFEC INSP OF AREA. INDICATION OF APPX 20 PERCENT MATERIAL LOSS. QC 10445/ (2) DEMENTIONS OF DENT IS .045 IN DEPTH. 75705/ THE DAMAGE ALLOWED REF EO. B747-5330-19344A. FOR FIFTY FLT HRS. REF D268037. SMOOTHED OUT AS PER SRM 51-10-01 AND 51-10-02. DEPTH 0.003, WIDTH 2 INCHES, LENGTH 3 INCH WITHIN SRM 53-30-01 FIG 1 LIMIT. HFEC INSP C/OUT PER NTM PART 6 51-00-00 FIG 4 AND NO CRACK FOUND. DMI 268037 (CLOSED)
Part: BATTERY — DISCHARGED (CABIN)
INSPECTION TYPE:A CK CREW SERVICE DOOR EMERGENCY LIGHTS INOP. FOUND BATTERY DEAD. REPLACED BATTERY PACK ASSY.
Earlier reports · 2001–2002 · 35 reports
2002
Part: LIGHT — INTERMITTENT (CABIN)
INSPECTION TYPE: PFLT. EMERGENCY EXIT LIGHT IN CEILING JUST INBOARD OF UPPER DECK ESCAPE LATCH, COMES ON THEN GOES OFF AFTER A FEW SECONDS. REMOVED AND REPLACED LIGHT ASSY. OPS CHECK NORMAL IAW BMM 33-51-07.
Part: PLUG — LOOSE (NR 3 ENGINE)
INSPECTION TYPE:N/A AIR TURNBACK ENG FIRE NR 3 ENGINE. FOUND BORESCOPE PLUG AT 2 O'CLOCK POSITION ON DIFFUSER CASE LOOSE. REINSTALLED PLUG AND SAFETIED IAW 72-00-00. RAN NR 3 ENGINE WITH NO RISE IN TEMP. A/C RETURNED TO SERVICE.
Part: PANEL — CRACKED (T/E FLAP)
INSPECTION TYPE:N/A LT WING OTBD MID T/E FLAP 4 FT CRACK ON TRAILING EDGE. INSTALLED COVE PANEL REF SRM 51-30-02.
Part: FIRE WARNING — FALSE ACTIVATION (COCKPIT)
INSPECTION TYPE:N/A DURING CRUISE AT FL270, ALL FIRE WARNING/DET LIGHTS ILLUMINATED MOMENTARILY AND FIRE BELL ALSO RANG MOMENTARILY. THE FIELD OFF AND GEN OPEN LIGHT ON NUMBER 1 GEN WERE ILLUMINATED. REFER TO ITEM 2 AND T/S FOUND THAT FIRE WARNING/DET LIGHT WERE CAUSED BY SWITCHING ELECTRIC POWER TRANSFER. FIRE WARNING OPERATIONAL TEST OK PER AMM 26-11-00 P501, AMM 26-15-00 P501 AND AMM 26-17-00 P501.
Part: POWER SUPPLY — DISCHARGED (CABIN)
INSPECTION TYPE:PFLT EMERGENCY EXIT SIGN ABOVE UPPER DECK ESCAPE SLIDE DOOR INOP. LIGHT COMES ON AND THEN GOES OUT QUICKLY. REMOVED AND REPLACED POWER PACK PER AMM 33-51-04, OPS CHECK GOOD.
Part: CLIP — CRACKED (NOSE W/W) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C NOSE WHEEL WELL VERTICAL BEAM WEB WEB R/H BS 320 #2 SHEAR TIE CLIP (COUNT FROM TOP) CRACK FOUND AT FASTENER AS MARKED. NWW VERTICAL BEAM WEB RH BS 320 #2 SHEAR TIE CLIP (COUNT FROM TOP) REPLACED AS PER SRM 51-10-01 & INSTALLED AS PER BOEING DWG 624U0005.
Part: SHEAR TIE — CRACKED (FUSELAGE) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C NOSE WHEEL WELL VERTICAL BEAM WEB RT BS 300 NR 2 AND 4 SHEAR TIE CLIP (COUNT FROM TOP) CRACK FOUND AT FASTENER. NWW VERTICAL BEAM WEB RT BS 300 NR 2 AND 4 SHEAR TIE CLIP REPLACED (COUNT FROM TOP) REPLACED AS PER SRM 51-10-01 AND INSTALLED AS PER BOEING DWG 624U0005.
Part: SHEAR TIE — CRACKED (FUSELAGE) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C NOSE WHEEL WELL VERTICAL BEAM WEB BS 280 LT NR 4 SHEAR TIE CLIP (COUNT FROM TOP) FOUND CRACK AT FASTENER. NWW VERTICAL BEAM WEB LT BS 280 NR 4 SHEAR TIE CLIP (COUNT FROM TOP) REPLACED AS PER SRM 51-10-01 & BOEING DWG 624U0005.
Part: SHEAR TIE — CRACKED (FUSELAGE) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C NOSE WHEEL WELL VERTICAL BEAM WEB BS 300 LT NR 3 & 4 SHEAR TIE CLIP (COUNT FROM TOP) FOUND CRACK AT FASTENER. NWW VERTICAL BEAM WEB LT BS 300 NR 3 & 4 SHEAR TIE CLIP (COUNT FROM TOP) REPLACED AS PER SRM 51-10-01 AND INSTALLED AS PER BOEING DWG 624U0005.
Part: SHEAR TIE — CRACKED (FUSELAGE) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C NOSE WHEEL WELL VERTICAL BEAM WEB BS 320 LT NR 3 SHEAR TIE CLIP (COUNT FROM TOP) FOUND CRACK AT FASTENER. NWW VERTICAL BEAM WEB LT BS 320 NR 3 SHEAR TIE CLIP (COUNT FROM TOP) REPLACED AS PER SRM 51-10-01 AND INSTALLED AS PER BOEING DWG 624U0005.
Part: SHEAR TIE — CRACKED (FUSELAGE) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C NOSE WHEEL WELL VERTICAL BEAM WEB RT BS 280 NR 3 AND NR 4 SHEAR TIE CLIP (COUNT FROM TOP) CRACK FOUND AT FASTENER. NWW VERTICAL BEAM WEB RT BS 280 NR 3 AND 4 SHEAR TIE CLIP (COUNT FROM TOP) REPLACED AS PER SRM 51-10-01 & INSTALLED AS PER BOEING DWG 624U0005.
Part: ANGLE — CRACKED (NOSE W/W) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C NLG W/W PRESSURE DECK LH CORNER LONG. ANGLE FOUND CRACKED AT BS 321 LBL 32 AS MARKED. NLG W/W PRESSURE DECK LH ANGLE REPLACE AS PER EO B747-5310-0574 DWG 624U0005 ST 3.
Part: CHANNEL — CORRODED (FUSELAGE) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C FX - KEEL BEAM BOX UNDER FAIRING SUPPORT LOWER SURFACE FOUND SURFACE CORROSION AT BS 1438 TO BS 1465 RBL 16 TO LBL 16. CHANNEL REPLACED AS PER SRM 51-10-01 PG 8.
Part: SUPPORT — CORRODED (FUSELAGE) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C FX - KEEL BEAM BOX UNDER FAIRING SUPPORT LOWER SURFACE FOUND SURFACE CORROSION AT BS 1465 RBL 16 TO LBL 16. FAIRING SUPPORT REPLACED IAW SEM 51-10-01 PG 8.
Part: FITTING — CORRODED (FUSELAGE) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C LT MLG W/W STA 1480 LBL 65 STR 42L WL 122 LONGERON FITTING AND ATT PLATE FOUND CORROSION (AFT OF O/B TRUNNION SUPPORT FITTING).
Part: ANGLE — CRACKED (NLG W/W) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C NLG W/W - CRACK SUSPECTED AT PRESSURE DECK RH LONGI. SUPPORT ANGLE STA 307 & STA 320 AS MARKED. NLG W/W CEILING R/H UPPER O/B ANGLE REPLACED AS PER EO B747-5310-0574.
Part: PRESSURE PANEL — CRACKED (FUSELAGE) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C PRESSURE PAN AT BS 400 CRACK INDICATION FOUND AT 1 EA FASTENER APPROX .75 INCH LENGTH. CRACKED PRESSURE PAN AT BS 400 REPLACED AS PER DWG 624U0005 SHT 9.
Part: TIE CLIP — CRACKED (FWD CARGO) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C FWD CARGO COMPT BS 560 S-33L STRINGER TIE CLIP CRACKED. TIE CLIP REPLACED AS PER SRM 51-10-01 P.8.
Part: GATE — CORRODED (L1 DOOR) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C M/D - L1 DOOR LOWER GATE FOUND PITTING CORROSION. LOWER GATE ASSY CHANGED AS PER MM 52-11-00.
Part: WEB — CRACKED (R5 DOOR) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C M/D - R5 DOOR FWD CUTOUT UPP SPLICE WEB FOUND CRACKED. REPAIR DOUBLER INSTALLED AS PER SRM 53-10-04 FIG.91.
Part: WEB — CRACKED (L2 DOOR) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C M/D - L2 DOOR FWD CUTOUT REVEAL FOUND CRACKED. M/D L2 DOOR FWD CUTOUT REVEAL REPAIRED AS PER RS #R-53-20-34755.
Part: FRAME — CRACKED (R1 DOOR) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C M/D - R1 DOOR FWD LOWER CORNER FRAME FOUND CRACKED. FRAME REPAIRED AS PER SRM 52-10-02 FIG 10.
Part: WEB — CRACKED (R2 DOOR) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C M/D - R2 DOOR FWD CUTOUT REVEAL FOUND CRACKED. M/D R2 DOOR FWD CUTOUT REVEAL REPAIRED AS PER HX RS #R-53-20-34755.
Part: FRAME — CRACKED (NO.3 PYLON) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C NO.3 PYLON - REAR ENG MOUNT FTG UPPER FRAME FOUND CRACK AT O/B FWD AREA AS MARKED. REPAIR CARRIED OUT IAW REPAIR SCHEME INSTRUCTIONS REFER R-54-53-34756 FOR MAT HT REFER TO CWPS CONTROL SEQUENCE NO.SQYJ016-090 CLASSIFIED MAJOR REPAIR.
Part: FRAME — CRACKED (NO.3 PYLON) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C NO.3 PYLON - REAR ENG MOUNT FTG UPPER FRAME FOUND CRACK AT O/B AFT PORTION AS MARKED. REPAIR CARRIED OUT IAW REPAIR SCHEME INSTRUCTION REFER R-54-53-34756 FOR MATERIAL HEAT TREATMENT REFER TO COMPONENT WORK PROCESS CARD CONTROL SEQUENCE NO.SQYJ016-090 CLASSIFIED MAJOR REPAIR.
Part: STRINGER — CRACKED (MAIN DECK) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C M/D - BS 856 S25R STRINGER END FOUND CRACKED. STRINGER REPAIRED AS PER SRM 53-10-03 FIG.1.
Part: BULKHEAD — CRACKED (NR 1 PYLON) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C NR 1 PYLON AFT TORQUE BULKHEAD FOUND 3 FASTENER HOLES CRACK AT CHORD AREA. REPAIR CARRIED OUT AS PER RS R-54-53-34764 INSTRUCTION.
Part: FITTING — CORRODED (BS 1241 R/H) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C FX - R/H BS 1241 WING CENTER SECTION REAR SPAR WEB AFT SURFACE BULKHEAD FITTING FOUND COR BETWEEN FASTENER #2 AND #9. R/H BS 1241 WING CENTER SECTION REAR SPARE WEB AFT FACE BULKHEAD FTG BETWEEN FASTENER #2 & #9 CORROSION REMOVED AS PER UPS EO B747-5710-11129.
Part: BULKHEAD — CRACKED (NR 4 PYLON) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C NR 4 PYLON AFT TORQUE BULKHEAD FOUND 3 FASTENER HOLES CRACK AT CHORD AREA. REPAIR CARRIED OUT AS PER RS-54-53-34764 INSTRUCTIONS.
Part: SKIN — CRACKED (NLG W/W) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C FX - FUSELAGE EXTERNAL SKIN IS CRACKED AROUND RIVET HEAD AT BS 400 STR 44R - STR 45R (NLG W/WELL RH AFT CORNER CUTOUT). NLG W/W R/H AFT CORNER CUTOUT FX EXTERNAL SKIN REPAIRED AS PER UPS EO B747-5330-3520E AND SRM 51-30-02 AND DWG 141U1099 AT BS 400 STR 44R - STR 45R.
Part: BEAM — CRACKED (LT MLG DOOR) · airframe 76,787 hrs · 14,624 cycles
INSPECTION TYPE:C LEFT MLG INBOARD W/W DOOR INBOARD CHANNEL FWD CORNER AREA CRACKED AS MARKED. LEFT MLG INBOARD W/W DOOR INBOARD BEAM REPLACED AS PER SRM 51-10-01 PG 8.
Part: LIGHT — INOPERATIVE (CABIN)
INSPECTION TYPE:N/A 1 EMERGENCY LT INOP UPPER DECK. REMOVED AND REPLACED BULB, OPS CHECK GOOD.
2001
Part: TEE CHORD — CRACKED (NR 4 PYLON)
INSPECTION TYPE:W/E NR 4 PYLON TEE CHORD CRACKED BELOW L/E. FABBED CHORD, INSTALLED TEE CHORD IAW 51-40-04 SRM .
Part: AUTOPILOT SYS — MALFUNCTIONED (COCKPIT)
INSPECTION TYPE:IN AUTO PILOT PITCHES IN LEVEL FLT. P1 TARGET ALERT H197877 IN LEVEL FLIGHT AUTOPILOT PULSED YOKE FORE/AFT WHEN AUTOPILOT WAS DISENGAGED LARGE FORCES IN THE PITCH AXIS WERE BEING HELF W AUTOPILOT REF LOGPAGE 575644 BLOCK 2 WRITE UP REMOVED AND REPLACED CADC (CAPT SIDE) PER MM 34 12 00 AUTOPILOT CHECKS NORMAL PER MM 22 10 00
Part: INDICATOR — INOPERATIVE (OXYGEN SYSTEM)
INSPECTION TYPE:IN TARGET ALERT 19396 PAX O2 REQUIRES FREQUENT SERVICE M210827 - DUAL PRESS O2 IND ON S/O STATION INOP. *S/D* CLEARED AND RESEATED C/P''S ON BOTH CREW O2 BOTTLES INDICATION NORMAL. THIS CLEARS MEL M210827.