# Service difficulty reports: N721DH, cancelled Aug 22, 2013

A list on [N721DH, cancelled Aug 22, 2013](https://openairdocs.org/deregistered/N721DH-2013-08-22.md).

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first.

Page 1 of 6 · 293 reports

- [SDR DHL2004721002](https://openairdocs.org/sdr/DHL2004721002.md): Switch · dirty · Jan 24, 2004 · N721DH · Boeing 727228 · Door Warning System
  > FORWARD ENTRY DOOR LIGHT ILLUMINATED UPON LANDING. LUBED DOOR INDICATION SWITCH ON FORWARD ENTRY, AND CYCLED DOOR SEVERAL TIMES IAW M/M 52-11-01. NO ABNORMAL INDICATIONS NOTED.
- [SDR DHL2004721001](https://openairdocs.org/sdr/DHL2004721001.md): Roller · lack of lube · Jan 15, 2004 · N721DH · Boeing 727228 · Passenger/Crew Doors
  > MAIN ENTRY DOOR DIFFICULT TO OPEN, CLOSE, AND LATCH. INSPECTED ENTRY DOOR LINKAGE AND MECHANISM, NO DEFECTS NOTED. LUBED ROLLERS, OPS CHECKED GOOD IAW B-727 M/M 52-11-01.
- [SDR DHL2003721012](https://openairdocs.org/sdr/DHL2003721012.md): Connector · dirty · Nov 29, 2003 · N721DH · Boeing 727228 · Emergency Lighting
  > EMERGENCY EXIT LIGHTS ABOVE COCKPIT ENTRY DOOR DO NOT COME ON. CLEANED CONNECTION AND OPS CHECKED GOOD IAW B-M/M 33-50-101.
- [SDR DHL2003721011](https://openairdocs.org/sdr/DHL2003721011.md): Light · broken · Nov 25, 2003 · N721DH · Boeing 727228 · Emergency Lighting
  > EMERGENCY EXIT LIGHT BROKEN. REPLACED EMERGENCY EXIT LIGHT IAW B-M/M 33-50-01. OPS CHECKED GOOD. REMOVED FROM A/C 753 IN SERVICEABLE CONDITION.
- [SDR DHL2003721010](https://openairdocs.org/sdr/DHL2003721010.md): Switch · lack of lube · Nov 14, 2003 · N721DH · Boeing 727228 · Door Warning System
  > AT 500 FT OFF CVG, FORWARD ENTRY ON S/O'S ANNUNCIATOR PANEL ILLUMINATED. NO CHANGE IN PRESSURE DIFFERENTIAL. AT APPROXIMATELY 1000 FT FORWARD ENTRY LIGHT EXTINGUISHED. INSPECTED AND LUBED SWITCH. TESTED IAW B-727 M/M CHAPTER 52. GROUND CHECKED NORMAL AT THIS
- [SDR DHL2003721009](https://openairdocs.org/sdr/DHL2003721009.md): Switch · dirty · Nov 13, 2003 · N721DH · Boeing 727228 · Landing Gear Position and Warning
  > AFTER TAKEOFF AT ORD WHEN GEAR HANDLE IS PLACED IN THE OFF POSITION NOSE GEAR DOOR LIGHT (RED) IS ON. HANDLE CYCLED UP AND OFF A 2ND TIME WITH SAME RESULTS. ABNORMAL PROCEDURE WAS PERFORMED AND THE GEAR HANDLE WAS LT IN THE UP POSITION. CLEANED NOSE GEAR DO
- [SDR DHL2003721008](https://openairdocs.org/sdr/DHL2003721008.md): Warning Light · illuminated · Sep 17, 2003 · N721DH · Boeing 727228 · Door Warning System
  > REJECTED TAKEOFF DUE TO ILLUMINATION OF EQUIPMENT ACCESS LIGHT ON SECOND OFFICERS PANEL. WT - 147.1, AIRSPEED - 70 KTS, OAT - 22 C, PRESS ALT - 460', BRAKE ENERGY ZONE: NORMAL. ITEM TRANSFERRED TO DMI 14168 PER MEL 52-4 CAT-C. PLACARD INSTALLED. REF DMI 14
- [SDR DHL2003721007](https://openairdocs.org/sdr/DHL2003721007.md): Duct Seal · leaking · Jul 15, 2003 · N721DH · Boeing 727228 · APU Exhaust System
  > WHEEL WELL ALARM ACTIVATED. FOUND APU UPPER EXHAUST SEAL LEAKING INTO WHEEL WELL. NO WHEEL WELL ALARM AFTER APU SHUTDOWN. NO OTHER INDICATIONS NOTED PER B-727 M/M 26-12-00. SEE ITEM 2M BELOW. APU UPPER EXHAUST DUCT LEAKING INTO RT WHEEL WELL. ITEM DEFERR
- [SDR DHL2003721006](https://openairdocs.org/sdr/DHL2003721006.md): Connector · damaged · Jun 16, 2003 · N721DH · Boeing 727228 · Overheat Detection
  > LOWER AFT BODY HEAT HAS NO TEST FUNCTION. TRANSFERRED TO DMI 13272 MEL 26-10-2 CAT C. PLACARD INSTALLED SP 26-10-2 COMPLIED WITH. REF DMI 13272 LOWER AFT BODY HEAT. REMOVED AND CLEANED CONNECTORS ON BOTH ENDS OF DETECTOR. RE-INSTALLED, OPS CHECKED GOOD.
- [SDR DHL2003721005](https://openairdocs.org/sdr/DHL2003721005.md): Battery · inoperative · Jun 7, 2003 · N721DH · Boeing 727228 · Smoke Detection
  > LOWER CARGO SMOKE DETECTOR FAULT LIGHT ILLUMINATED. REMOVED AND REPLACED BATTERIES IN SMOKE DETECTOR S/N: 4530. OPS CHECKED GOOD IAW B727 M/M 26-16-01.
- [SDR DHL2003721004](https://openairdocs.org/sdr/DHL2003721004.md): Battery Pack · loose · Jun 4, 2003 · N721DH · Boeing 727228 · Emergency Lighting
  > EMERGENCY EXIT LIGHT OVER MAIN CABIN DOOR BURNED OUT. RESEATED BATTERY PACK, OPS GOOD IAW M/M 33-50-01.
- [SDR DHL2003721003](https://openairdocs.org/sdr/DHL2003721003.md): Relay · failed · May 30, 2003 · N721DH · Boeing 727228 · Cabin Cooling System
  > ON GROUND WITH BOTH PACKS ON LT PACK TRIP AND OVERHEAT LIGHT ILLUMINATED. SMOKE ENTERED IN THE COCKPIT. DEFERRED PER MEL 21-5-4 CAT C TRANSFERRED TO DMI 13119. PLACARD INSTALLED. MAINTENANCE CONTROL WAS NOTIFIED. COMPLIED WITH SP 21-5. REF DMI 13119, BOT
- [SDR DHL2003721002](https://openairdocs.org/sdr/DHL2003721002.md): Warning Horn · malfunctioned · May 22, 2003 · N721DH · Boeing 727228 · Central Warning
  > DURING APU FIRE TEST EXTERNAL HORN WAS NOT HEARD. WARNING BELL AND LIGHT ON FLIGHT DECK OPERATED NORMALLY. TRANSFERRED TO DMI 13032 MEL REF 26-11-2 CAT C. REFER TO DMI 13032; REMOVED AND REPLACED APU WARNING HORN AND PERFORMED ADJ/TEST PER BMM 26-15-0. OPS
- [SDR DHL2003721001](https://openairdocs.org/sdr/DHL2003721001.md): Engine · malfunctioned · May 15, 2003 · N721DH · Boeing 727228 · Engine (Turbine/Turboprop)
  > REJECTED TAKEOFF - UNABLE TO MAKE EPR ON NR 3. T/O EPR READINGS 1.94; 1.96; 1.83. UTILIZED EMERGENCY PROCEDURE 5.4.1, REJECTED TAKEOFF FLOW CHART, AND BRAKE ENERGY CHART AS PER FN NR 2, ENGINE, AIRCRAFT, WEATHER CONDITIONS WERE: 165.3, SPEED 80 KTS, TEMP 27C,
- [SDR DHL2002721011](https://openairdocs.org/sdr/DHL2002721011.md): Seat · Nov 16, 2002 · N721DH · Boeing 727228 · Cabin Equipment/Furnishings
  > 1) CANNOT ADJUST CAPTS SEAT.2) ADJUSTED SEAT FORWARD AND BACK MOVEMENT IAW B-MM 25-10-42 OPS CHECK GOOD.
- [SDR DHL2002721010](https://openairdocs.org/sdr/DHL2002721010.md): Seat · Nov 16, 2002 · N721DH · Boeing 727228 · Cabin Equipment/Furnishings
  > 1) CAPTS SEAT BACK WILL NOT STAY UPRIGHT WHEN SOME PRESSURE IS APPLIED2) INSTALLED CAPT SEAT IAW B-MM 25-10-42 OPS CHECK GOOD
- [SDR DHL2002721009](https://openairdocs.org/sdr/DHL2002721009.md): Screw · Nov 15, 2002 · N721DH · Boeing 727228 · Cabin Equipment/Furnishings
  > 1) CAPTAINS SEAT BACK ADJ. DOES NOT COMPLETLY RELEASE MAKING IT DIFF. TO MOVE IN EITHER DIRECTION2) DEFFERED RECLINE PORTION OF SEAT IAW MEL 25-20-3 DMI 10980 ASSIGNED PER MAINT CONTROL-SEAT REPLACEMENT SCHEDULED3) REFER TO DMI #10980 CAPT SEAT BACK ADJUSTM
- [SDR DHL2002721008](https://openairdocs.org/sdr/DHL2002721008.md): Switch · out of adjust · Sep 5, 2002 · N721DH · Boeing 727228 · Door Warning System
  > MAIN CARGO DOOR WARNING LIGHT S/O PANEL AND RIGHT AT ENTRY DOOR ILLUMINATED AT FL285 CABIN PSI WAS 7.0 TO 8.0 PSI NO LOSS OF PRESSURIZATION NOTED. DHL AIRWAYS EVENT REPORT STATES AN EMERGENCY WAS DECLARED. ADJUSTED AFT JAMB DRIFT PIN SWITCH. OPS CHECKED DOO
- [SDR DHL2002721519](https://openairdocs.org/sdr/DHL2002721519.md): Switch · out of adjust · Sep 5, 2002 · N721DH · Boeing 727228 · Door Warning System
  > DURING ACCEPTANCE FLIGHT OUT OF C-CHECK HEAVY MAINTENANCE CREW DECLARED AN EMERGENCY LANDING DUE TO MAIN CARGO DOOR WARNING LIGHT S/O PANEL AND LIGHT AT ENTRY DOOR ILLUMINATED AT FL 285 CABIN PSI WAS 7.0 TO 8.0 PSI, NO LOSS OF PRESSURIZATION. ADJUSTED AFT JAM
- [SDR DHL2002721504](https://openairdocs.org/sdr/DHL2002721504.md): Seat Track · corroded · Aug 8, 2002 · N721DH · Boeing 727228 · Fuselage, Seat/Cargo Attach Fittings
  > DURING C-CHECK DISCREPANCY AS FOLLOWS, CABIN, SEAT TRACK AT STA 760 IS CORRODED AT RBL 24. REMOVED CORROSION FROM CABIN SEAT TRACK AND FOUND CORROSION TO BE BEYOND ALLOWABLE LIMITS IAW B-727 SRM 53-10-1 FIG 3. REMOVED CORRODED SEAT TRACK IAW B-727 SRM 51-30-2
- [SDR DHL2002721503](https://openairdocs.org/sdr/DHL2002721503.md): Seat Track · corroded · Aug 8, 2002 · N721DH · Boeing 727228 · Fuselage, Seat/Cargo Attach Fittings
  > DURING C-CHECK DISCREPANCY AS FOLLOWS, CABIN SEAT TRACK BETWEEN STA 870-848, AFT FLANGE CORRODED AT LBL 24. REMOVED CORROSION FROM CABIN SEAT TRACK, BEYOND ALLOWABLE LIMITS IAW B-727 SRM 53-10-1 FIG 1. REMOVED CORRODED SEAT TRACK. FABRICATED NEW SECTION IAW
- [SDR DHL2002721516](https://openairdocs.org/sdr/DHL2002721516.md): Spar · corroded · Aug 7, 2002 · N721DH · Boeing 727228 · Wing Spar
  > DURING C-CHECK, LT WING UPPER FRONT SPAR ATTACH TO L/E WS 140/150 CORROSION UNDERNEATH L/E SKIN. REMOVED CORROSION FROM FRONT SPAR UPPER CHORD UPPER SURFACE WS 140 TO WS 150. MAT LOSS BEYOND ALLOWABLE LIMITS. FABRICATED 2 SPAR CHORD REPAIR ANGLES. INSTALLE
- [SDR DHL2002721517](https://openairdocs.org/sdr/DHL2002721517.md): Frame · cracked · Aug 7, 2002 · N721DH · Boeing 727228 · Fuselage Main, Frame
  > DURING C-CHECK, BS 910 FRAME CRACKED AT STR 15 RT. REMOVE FASTENERS, BS 910 FRAME STR 15 LT IAW B-727 SRM 51-30-2. CUT OFF AND REMOVED CRACKED SECTION OF STA 910 AND STR 15 LEFT TO STR 14 LEFT IAW B-727 SRM 53-10-4. FABRICATED DOUBLER ANGLE AND FILLER ANGLE
- [SDR DHL7212002515](https://openairdocs.org/sdr/DHL7212002515.md): Frame · cracked · Aug 7, 2002 · N721DH · Boeing 727228 · Fuselage Main, Frame
  > DURING C-CHECK, BS 940 FRAME (LEFT) CRACKED AT AFT FLOORBEAM ATTACH FLANGE (CONFIRMED BY NDT). STOP DRILLED CRACK IAW B-727 S/B 53-190. LOCATED AND DRILLED-UP ANGLES, DOUBLERS AND RADIUS FILLERS. INSTALLED REPAIR KIT ON FRAME IAW B-727 S/B 727-53-0190.
- [SDR DHL2002721511](https://openairdocs.org/sdr/DHL2002721511.md): Fitting · cracked · Aug 7, 2002 · N721DH · Boeing 727228 · Wing Miscellaneous Structure
  > DURING C-CHECK, RT WING STRINGER LUG CRACKED AT RIB ATTACH WS 656. CRACK IN LUG TERMINATES AT FASTENER HOLE ON RT VENT BOX STRINGER AT RIB ATTACH WS 656 VERIFIED BY 10 X MAGNIFYING GLASS. DRILLED UP REPAIR PARTS AND INSTALLED.
- [SDR DHL2002721502](https://openairdocs.org/sdr/DHL2002721502.md): Frame · cracked · Aug 7, 2002 · N721DH · Boeing 727228 · Fuselage Main, Frame
  > DURING C-CHECK DISCREPANCY AS FOLLOWS, CRACK IN MAIN FRAME, STA 540, STR 24R. STOP DRILL OF CRACK IN MAIN FRAME IAW B-727 SRM 51-10-1 FIG 1. FABRICATED DOUBLER IAW B-727 SRM 52-90-1 PAGE 207-215.
- [SDR DHL2002721512](https://openairdocs.org/sdr/DHL2002721512.md): Skin · dented · Aug 6, 2002 · N721DH · Boeing 727228 · Fuselage Main, Plate/Skin
  > DURING C-CHECK, FOUND 2 DENTS ON SECTION 41 SKIN AT 6 O'CLOCK POSITION FWD OF FWD E/E BAY DOOR. CUT OUT SECTION OF DAMAGED FUSELAGE SKIN 6 O'CLOCK POSITION AT STA 186 FWD OF FWD E & E DOOR IAW B-727 SRM 53-30-3 FIG 4. REMOVED EXISTING FLUSH REPAIR FWD OF CUT
- [SDR DHL2002721505](https://openairdocs.org/sdr/DHL2002721505.md): Skin · cracked · Aug 6, 2002 · N721DH · Boeing 727228 · Fuselage Main, Plate/Skin
  > DURING C-CHECK DISCREPANCY AS FOLLOWS, FUSELAGE SKIN CRACKED SECTION 41 LEFT SIDE BS 243 WL 215. CUTOUT CRACKED SECTION OF FUSELAGE SKIN IAW B-727 SRM 53-30-3. FABRICATED REPAIR DOUBLER IAW B-727 SRM 53-30-3 FIG 3 AND S/B 53-0183. INSTALLED DOUBLER AND FILL
- [SDR DHL2002721514](https://openairdocs.org/sdr/DHL2002721514.md): Seat Track · corroded · Aug 5, 2002 · N721DH · Boeing 727228 · Fuselage, Seat/Cargo Attach Fittings
  > DURING C-CHECK, CABIN SEAT TRACK AT LBL 45 IS CORRODED AT STA 1148 AND STA 1156. REMOVED CABIN SEAT TRACK SECTION FROM STA 1148 TO STA 1156-LBL 45 IAW B-727 SRM 51-30-2. FABRICATED NEW SECTION OF SEAT TRACK IAW B-727 SRM 53-10-5 FIG 1. INSTALLED NEW SEAT TR
- [SDR DHL2002721508](https://openairdocs.org/sdr/DHL2002721508.md): Seat Track · corroded · Aug 5, 2002 · N721DH · Boeing 727228 · Fuselage, Seat/Cargo Attach Fittings
  > DURING C-CHECK, CABIN SEAT TRACK AT RBL 45 IS CORRODED AT STA 1177. REMOVED CABIN SEAT TRACK AT STA 1177 AND RBL 45 IAW B-727 SRM 51-30-2. FABRICATED NEW SEAT TRACK IAW B-727 SRM 53-10-5 FIG 1. INSTALLED SECTION OF SEAT TRACK IAW B-727 SRM 53-10-5 FIG 1.
- [SDR DHL2002721507](https://openairdocs.org/sdr/DHL2002721507.md): Seat Track · corroded · Aug 5, 2002 · N721DH · Boeing 727228 · Fuselage, Seat/Cargo Attach Fittings
  > DURING C-CHECK, CABIN SEAT TRACK AT LBL 24 IS CORRODED AT STA 1136 AND STA 1156. REMOVED CABIN SEAT TRACK SECTION IAW B 727 SRM 51-30-2. FABRICATED A NEW SECTION OF SEAT TRACK IAW B-727 SRM 57-10-5 FIG 1. INSTALLED NEW SEAT TRACK IAW B-727 SRM 53-10-5 FIG 1
- [SDR DHL2002721506](https://openairdocs.org/sdr/DHL2002721506.md): Intercostal · corroded · Aug 5, 2002 · N721DH · Boeing 727228 · Fuselage Miscellaneous Structure
  > DURING C-CHECK, CABIN INTERCOSTAL AT RBL 24 IS CORRODED AT STA 1148. REMOVED INTERCOSTAL AT STA 1148 AND RBL 24 IAW B-727 SRM 51-30-2. FABRICATED NEW INTERCOSTAL IAW B-727 SRM 53-10-5. INSTALLED NEW INTERCOSTAL AT STA 1148 RT FROM RBL 20 TO RBL 65 IAW B-727
- [SDR DHL2002721501](https://openairdocs.org/sdr/DHL2002721501.md): Stringer · corroded · Aug 5, 2002 · N721DH · Boeing 727228 · Fuselage Main, Longeron/Stringer
  > DURING C-CHECK DISCREPANCY AS FOLLOWS, IN FWD CARGO AFT 640, STR 23R HAS CORROSION. REMOVED SECTION OF STRINGER. FABRICATED A NEW SECTION OF STRINGER IAW B-727 SRM 53-10-3 FIG 1 AND SRM 53-10-2. INSTALLED NEW STRINGER AND SPLICE IAW B-727 SRM 53-10-3 FIG 1.
- [SDR DHL2002721500](https://openairdocs.org/sdr/DHL2002721500.md): Floor Support · cracked · Aug 5, 2002 · N721DH · Boeing 727228 · Fuselage Miscellaneous Structure
  > DURING C-CHECK, DISCREPANCY AS FOLLOWS, CRACK IN FLOOR SUPPORT UNDER (FWD) COCKPIT ENTRY FLOOR BETWEEN DOOR AND MANUAL EXTENSION PANELS. REMOVED CRACK FLOOR SUPPORT FROM COCKPIT FLOOR BETWEEN ENTRY DOOR AND MANUAL EXT PANELS IAW B-727 SRM 51-30-2. FABRICATED
- [SDR DHL2002721518](https://openairdocs.org/sdr/DHL2002721518.md): Frame · cracked · Aug 3, 2002 · N721DH · Boeing 727228 · Fuselage Main, Frame
  > DURING C-CHECK, LEFT WHEEL WELL CASTING FRAME BS 930 CRACKED. REMOVED CRACKED STA 930 FRAME LT. LOCATED AND DRILLED-UP NEW STA 930 FRAME LT. INSTALLED NEW STA 930 FRAME LT.
- [SDR DHL2002721513](https://openairdocs.org/sdr/DHL2002721513.md): Frame · cracked · Aug 3, 2002 · N721DH · Boeing 727228 · Fuselage Main, Frame
  > DURING C-CHECK, RT WHEEL WELL CASTING FRAME BS 930 CRACKED TO O/B FWD FLANGE, O/B AFT FLANGE ALSO I/B FLANGE. REMOVED CRACKED STA 930 FRAME RT. LOCATED AND DRILLED-UP NEW STA 930 FRAME R. INSTALLED NEW STA 930 FITTING RT.
- [SDR DHL2002721510](https://openairdocs.org/sdr/DHL2002721510.md): Pressure Panel · corroded · Aug 3, 2002 · N721DH · Boeing 727228 · Fuselage Main, Bulkhead
  > DURING C-CHECK, NOSE WHEEL WELL HORIZONTAL PRESS MID CHORD CORROSION AT APPROX STA 320 & 355 RT AT DOGHOUSE TO CATWALK JUST AFT OF RT NOSE TRUNNION. FOUND RT AND N/W/W PRESSURE WEB MID CHORD TO BE CORRODED BEYOND ALLOWABLE LIMITS AND REMOVED. LOCATED AND DRI
- [SDR DHL2002721007](https://openairdocs.org/sdr/DHL2002721007.md): Light · defective · Jul 25, 2002 · N721DH · Boeing 727228 · Flight Compartment Lighting
  > S/O`S OVERHEAD TABLE LIGHT INOP, WHEN ADJUSTED SPARKS CAME OUT OF SOCKET. FOUND S/O'S FWD TABLE LIGHT SOCKET BROKEN. REPLACED S/O'S FWD TABLE LIGHT ASSEMBLY. OPS CHECK NORMAL. DURING START UP SMOKE APPEARED COMING FROM TABLE LIGHT AREA. TURNED OFF TABLE L
- [SDR DHL2002721006](https://openairdocs.org/sdr/DHL2002721006.md): Light · out of position · Jul 25, 2002 · N721DH · Boeing 727228 · Emergency Lighting
  > EMERGENCY EXIT LIGHT ABOVE ENTRY DOOR FELL OFF. REINSTALLED EMERGENCY EXIT LIGHT AS PER MAINTENANCE MANUAL 33-50-71. OPS CHECK GOOD.
- [SDR DHL2002721005](https://openairdocs.org/sdr/DHL2002721005.md): Battery · discharged · Jul 21, 2002 · N721DH · Boeing 727228 · Emergency Lighting
  > EMERGENCY EXIT LIGHT OVER AIRCRAFT ENTRY DOOR INOP DURING STANDBY POWER CHECK. REMOVED AND REPLACED EMERGENCY EXIT LIGHT BATTERIES, OPS CHECKS GOOD IAW B727 MM 33-50-71.
- [SDR DHL2002721004](https://openairdocs.org/sdr/DHL2002721004.md): Panel · bent · Jul 17, 2002 · N721DH · Boeing 727228 · Emergency Exits
  > OVERWING EMERGENCY EXIT DOOR PANEL IS BENT AT LOWER AFT CORNER. RESECURED INTERIOR EMERGENCY EXIT PANEL WITH GILLINER TAPE IAW B727 M/M 52-21-00, CHECKS GOOD.
- [SDR DHL2002721003](https://openairdocs.org/sdr/DHL2002721003.md): Power Unit · Jul 16, 2002 · N721DH · Boeing 727228 · Detection System
  > 1) WHILE PERFORMING APU FIRE WARNING TEST APU BLT C/B POPPED. 2) R/R APU OPERATING POWER UNIT IAW WDM 49-41-01 APU FIRE WARNING GRD OP CK GOOD.
- [SDR DHL2002721001](https://openairdocs.org/sdr/DHL2002721001.md): Windshield Wiper · out of adjust · Feb 23, 2002 · N721DH · Boeing 727228 · Windshield/Door Rain/Ice Removal
  > WINDSHIELD WIPER INOP. ADJUSTED WIPER TENSION PER 30-20-0, CHECKS GOOD.
- [SDR DHL2001721010](https://openairdocs.org/sdr/DHL2001721010.md): Smoke Detector · failed · Dec 27, 2001 · N721DH · Boeing 727228 · Smoke Detection
  > ON P/F FOUND NR 4 RIGHT SMOKE DETECTOR WOULD NOT TEST. USED RIDING SPARE SMOKE DETECTOR FOR USE IN NR 4 RT POSITION. REMOVED AND REPLACED SMOKE DETECTOR WITH A SERV DETECTOR IAW B727 MM 26-17-000. CHECKS GOOD. DEFERRED IAW DHL GMM 3.5 CAT II CONTROL 8129E.
- [SDR DHL2001721009](https://openairdocs.org/sdr/DHL2001721009.md): Windshield Wiper · binding · Dec 14, 2001 · N721DH · Boeing 727228 · Windshield/Door Rain/Ice Removal
  > FIRST OFFICER'S WIPER INOP. FOUND WIPER TO BE BOUND UP. RELEASED TENSION, OPS CHECKED GOOD IAW BMM CH 30-42-01.
- [SDR DHL2001721008](https://openairdocs.org/sdr/DHL2001721008.md): Autopilot Sys · malfunctioned · Sep 25, 2001 · N721DH · Boeing 727228 · Altitude Controller
  > EACH TIME ALTITUDE HOLD IS DISENGAGED, A/C ABRUPTLY PITCHES UP AND CLIMB AT 500-100 FPM, STAB OUT OF TRIM LIGHT IS NOT ILLUMINATED. COULD NOT DUPLICATE ON GROUND. AUTO PILOT ALTITUDE HOLD CHECKS GOOD IAW B727 M/M 22-11-01. NO HISTORY.
- [SDR DHL2001721007](https://openairdocs.org/sdr/DHL2001721007.md): Power Unit · faulty · Sep 8, 2001 · N721DH · Boeing 7272Q9 · Fire Detection
  > DURING APU FIRE TEST FIRE BOTTLE C/B POPS APPROX 35 SEC AND FIRE TEST IS INOP. TRIED NEW SENSOR DET, NO HELP. REPLACED O/H DET POWER UNIT, SYS OPS CHECK NORMAL IAW MM 26-15-0.
- [SDR DHL2001721006](https://openairdocs.org/sdr/DHL2001721006.md): Stall Warning · malfunctioned · Aug 29, 2001 · N721DH · Boeing 727228 · Stall Warning System
  > OVERSPEED WARNING SOUNDED ON CLIMBOUT APPROX 10 KTS BEFORE BARBER POLE AND STICK SHAKER SOUNDED ON DESCENT AT 210 KTS CLEAN CONFIGURATION. PERF ADJ/ TEST STALL WARNING SYS PER MM 34-18-01. OPS CKS NORMAL. PLACED BOTH MACH METERS (CAPT & F/O) TO MODE B. PE
- [SDR DHL2001721005](https://openairdocs.org/sdr/DHL2001721005.md): Transmitter · failed · Jul 20, 2001 · N721DH · Boeing 727228 · Leading Edge Slat Position Indicating System
  > NR 2 LE FLAP FAILED TO RETRACT. ACCOMPLISHED ABNORMAL PROCEDURE THEN COULD NOT GET NR 2 LE FLAP TO EXTEND. ACCOMPLISHED ABNORMAL PROCEDURE LANDED OK. REMOVED AND REPLACED NR 2 LE FLAP POSITION TRANSMITTER IAW 27-82-1.
- [SDR DHL2001721004](https://openairdocs.org/sdr/DHL2001721004.md): Seat · defective · Jun 27, 2001 · N721DH · Boeing 727228 · Flight Compartment Equipment
  > F/O SEAT BACK WILL NOT STAY LOCKED IN PLACE. WHEN WEIGHT OR PRESSURE IS PUT ON SEAT BACK, IT UNLOCKS AND MOVES TO FULL AFT (RECLINE) POSITION. F/O SEAT REMOVED AND REPLACED IAW M/M 25-10-42 OPS CK GOOD. OLD P/N 808737-619, OLD S/N 324, NEW P/N 808737-625, N

Next page: https://openairdocs.org/deregistered/N721DH-2013-08-22/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
WHERE n_number = 'N721DH' AND deregistration_id = 'N721DH-2013-08-22'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N721DH-2013-08-22/reports

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