# Service difficulty reports: N509DA, cancelled Apr 2, 2013 A list on [N509DA, cancelled Apr 2, 2013](https://openairdocs.org/deregistered/N509DA-2013-04-02.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 2 · 68 reports - [SDR DL72L011980](https://openairdocs.org/sdr/DL72L011980.md): Hinge Fitting · worn · Dec 25, 2001 · N509DA · Boeing 727232 · Horizontal Stabilizer Structure > THE FACE OF THE INBOARD LUG ON THE LBL 10 HORIZONTAL STABILIZER REAR SPAR HINGE FITTING WAS FOUND WORN. THE FACE WAS SPOTFACED TO REMOVE ALL DAMAGE AND PROVIDE A FLAT SURFACE. AN OVERSIZED FLANGED BUSHING WAS INSTALLED TO RESTORE THE AREA. THE REPAIR WAS AC - [SDR DL72L011979](https://openairdocs.org/sdr/DL72L011979.md): Hinge Fitting · corroded · Dec 25, 2001 · N509DA · Boeing 727232 · Vertical Stabilizer, Attach Fittings > CORROSION WAS FOUND IN THE BORES AND SPOT FACES OF THE VERTICAL STABILIZER HINGE SUPPORT FITTINGS ON THE LT & RT SIDE OF THE STABILIZER. THE CORROSION WAS REMOVED BY OVER SIZING THE BORES AND MACHINING THE SPOT FACES. OVERSIZE REPAIR BUSHINGS WERE INSTALLED - [SDR DL72L011814](https://openairdocs.org/sdr/DL72L011814.md): Engine · shutdown · Nov 15, 2001 · N509DA · Boeing 727232 · Engine (Turbine/Turboprop) > NO 2 ENG SHUTDOWN INADVERTENTLY IN FLT AT FL270. RESTARTED ENGINE WITH ALL PARAMETERS NORMAL. OPERATED NORMALLY FOR DURATION OF FLIGHT. PERFORMED WINDMILL INSPECTION AND CHECKED CHIP DETECTORS AND OIL FILTER. ALL NORMAL, OK FOR SERVICE. - [SDR DL72L011200](https://openairdocs.org/sdr/DL72L011200.md): Light · damaged · Jul 18, 2001 · N509DA · Boeing 727232 · Emergency Lighting > RT FWD OVERWING EMERGENCY LIGHT LENS MISSING AND LIGHT ASSEMBLY DAMAGED. REPLACED LIGHT LENS AND REMOVED AND REPLACED LIGHT ASSEMBLY PER MM, OPS CHECK GOOD. - [SDR DL72L011163](https://openairdocs.org/sdr/DL72L011163.md): Skin · cracked · Jul 11, 2001 · N509DA · Boeing 727232 · Vertical Stabilizer, Plate/Skin > THE LT VERTICAL STABILIZER SKIN WAS FOUND WITH A 1 INCH CRACK EMANATING FROM A FASTENER HOLE NEAR THE REAR SPAR JUST ABOVE THE STAB-TO-FUSELAGE SKIN ATTACH ANGLE. - [SDR DL72L011151](https://openairdocs.org/sdr/DL72L011151.md): Frame · cracked · Jul 11, 2001 · N509DA · Boeing 727232 · Fuselage Main, Frame > INSPECTION OF THE RT TORQUE BOX STRUCTURE FOR THE VENTRAL STAIRWAY PER BAC S/B 727-53-0129 AND AD 94-07-08 REVEALED A CRACK IN THE INBD LONGITUDINAL UPPER CHORD AND A CRACK IN THE GUSSET AND BEAM AT FS 1273. - [SDR DL72L010954](https://openairdocs.org/sdr/DL72L010954.md): Unknown · odor · Jun 12, 2001 · N509DA · Boeing 727232 · Air Distribution System > EN ROUTE TO PHX PAX REPORTED SMELLING HOT ELECTRICAL ODOR NEAR SEAT ROW 17. NO SMOKE WAS REPORTED AND NO C/B`S TRIPPED. CONTRACT MTC DROPPED CEILING PANELS AND PSUS NO DAMAGE FOUND. FLIGHT CREW RAN ENGINES AND PACKS. STILL UNABLE TO DUPLICATE PROBLEM. NO - [SDR DL72L010206](https://openairdocs.org/sdr/DL72L010206.md): Ballast · burned · Feb 6, 2001 · N509DA · Boeing 727232 · Passenger Compartment Lighting > P/R SMOKE IN COCKPIT, FWD LAV SMOKE ALARM WENT OFF. SMOKE NOT ICED FROM BEHIND P-18 PNL. VERY ACRID SMELL IN THE COCKPIT, DID NOT NOTICE SMOKE FROM EYEBALL VENTS. SMELL VERY STRONG IN FWD LAV SMOKE, CLEARED AFTER APPROX 2 MIN. NO SMELL NOTED FROM AFT OF F - [SDR DL72L002317](https://openairdocs.org/sdr/DL72L002317.md): Light · inoperative · Nov 27, 2000 · N509DA · Boeing 727* · Emergency Lighting > IRR- AFT AIRSTAIR OVERHEAD EMERGENCY LITE ASSY INOP. CA- RPLD SAME. - [SDR DL72L001927](https://openairdocs.org/sdr/DL72L001927.md): Battery Pack · discharged · Oct 2, 2000 · N509DA · Boeing 727232 · Emergency Lighting > DURING MORNING EMERGENCY LIGHTS TEST, WHEN SELECTED ON, LIGHTS ILLUMINATED THEN WENT DIM AND FINALLY OFF. REPLACED BATTERY PACKS. S/N OFF 73729, 32333, 24513, 10662, 12950, YA8852, 4671, 72867, 3467, 7428, 65522, 9956. MAN P/N OF A - [SDR DL72L001386](https://openairdocs.org/sdr/DL72L001386.md): Heater · malfunctioned · Jul 23, 2000 · N509DA · Boeing 727232 · Heating System > FOUND ON ARRIVAL WHILE UNLOADING PASSENGER BAGS AFT BAG BIN WALL OVERHEATED AND DISCOLORED. FOUND THE BAG BIN WALL OVERHEATED. REPLACED HEATER ASSY. - [SDR DL72L000989](https://openairdocs.org/sdr/DL72L000989.md): Light · inoperative · May 20, 2000 · N509DA · Boeing 727232 · Emergency Lighting > LEFT AFT OVERWING EMERGENCY LIGHT INOP. REPLACED BATTERY PACK, CHECKS GOOD. - [SDR DL72L000904](https://openairdocs.org/sdr/DL72L000904.md): Frame · cracked · May 5, 2000 · N509DA · Boeing 727232 · Fuselage Main, Frame > THE FUSELAGE FRAME AT FS 825.92 WAS FOUND CRACKED AT STR 16L. THE CRACK WAS REMOVED AND REPAIRED PER ERA 334351-14 AT HMV. - [SDR DL72L000903](https://openairdocs.org/sdr/DL72L000903.md): Skin · corroded · May 5, 2000 · N509DA · Boeing 727232 · Fuselage Main, Plate/Skin > CORROSION DAMAGE WAS FOUND ON THE FUSELAGE SKIN BETWEEN FS 700 AND 720 BETWEEN STRINGERS 28L AND 28R. ERA 334399-14AD AUTHORIZES THE CORROSION TO BE REMOVED AND REPAIRED PER SRM 53-30-3, FIGURE 1 AT HMV. - [SDR DL72L000902](https://openairdocs.org/sdr/DL72L000902.md): Skin · cracked · May 5, 2000 · N509DA · Boeing 727232 · Fuselage Main, Plate/Skin > CRACKS WERE FOUND AT THE UPPER AND LOWER HINGE CUTOUTS OF THE L1 DOOR. THE SKIN AND BONDED DOUBLER WERE CRACKED AT BOTH LOCATIONS AND THE BEAR STRAP WAS CRACKED AT THE UPPER HINGE LOCATION ONLY. THE CRACKS WERE REMOVED AND REPAIRED PER ERA 334353-14 AT HMV. - [SDR DL72L000898](https://openairdocs.org/sdr/DL72L000898.md): Frame · cracked · May 5, 2000 · N509DA · Boeing 727232 · Fuselage Main, Frame > THE WEB OF THE FS 761L FRAME WAS FOUND CRACKED RIGHT AT THE FLOOR LINE. ERA 334347-14 AUTHORIZES THE DAMAGE AT THIS ONE LOCATION TO BE REPAIRED PER EO 4-61904-3AD. THE DAMAGE WAS FOUND AT HMV. - [SDR DL72L000884](https://openairdocs.org/sdr/DL72L000884.md): Skin · worn · May 4, 2000 · N509DA · Boeing 727232 · Leading Edge Devices > UPPER SURFACE IS WORN ON NR 5 SLAT. BURNISHED WEAR AREA, MADE STAINLESS DOUBLER. INSTALLED DOUBLER PER MM 727 57-54-0 FIG 81. - [SDR DL72L000799](https://openairdocs.org/sdr/DL72L000799.md): Skin · cracked · Apr 25, 2000 · N509DA · Boeing 727232 · Vertical Stabilizer, Plate/Skin > TEMP REPAIR ON VERTICAL STAB RT SIDE AT FUSELAGE SKIN. REPAIRED AREA PER M/M 55-30-0 FIG 801. - [SDR DL72L000821](https://openairdocs.org/sdr/DL72L000821.md): Attach Fitting · corroded · Apr 24, 2000 · N509DA · Boeing 727232 · Fuselage Miscellaneous Structure > FWD AIR CONDITIONER BAY DOOR ATTACH TEE WAS REPAIRED PER MM 53-30-1, DUE TO CORROSION. - [SDR DL72L001016](https://openairdocs.org/sdr/DL72L001016.md): Angle · worn · Apr 18, 2000 · N509DA · Boeing 727232 · Trailing Edge Flaps > AFT CHORD ANGLE WORN AT I/B AFT FLAP TRACK. REPAIRED PER MM-57-52-0 FIG 802, ON S/O A34364. - [SDR DL72L000726](https://openairdocs.org/sdr/DL72L000726.md): Skin · cracked · Apr 16, 2000 · N509DA · Boeing 727232 · Fuselage Main, Plate/Skin > A CRACK WAS FOUND IN THE STR 4L LAP JOINT BETWEEN FS 420 AND FS 440. THE CRACK WAS CUT OUT AND REPAIRED PER ERA 334325-14AD AT HMV. - [SDR DL72L000724](https://openairdocs.org/sdr/DL72L000724.md): Stiffener · cracked · Apr 16, 2000 · N509DA · Boeing 727232 · Fuselage Miscellaneous Structure > THREE CRACKS WERE FOUND IN THE LBL 26.83 VERTICAL STIFFENER ON THE FORWARD SIDE OF THE FS 1183 BULKHEAD. THE CRACKS WERE FOUND BETWEEN WL 243 AND WL 263. EACH CRACK WAS APPROX 2 INCHES LONG. THE STIFFENER WAS REPAIRED PER ERA 334327-14AD AND S/B 727-53-0192 - [SDR DL72L001013](https://openairdocs.org/sdr/DL72L001013.md): Spar · cracked · Apr 14, 2000 · N509DA · Boeing 737232 · Trailing Edge Flaps > AFT SPAR RAIL CRACKED. REPAIRED PER MM 57-52-0 FIG 802, ON S/O A34369. - [SDR DL72L000822](https://openairdocs.org/sdr/DL72L000822.md): Stringer · cracked · Apr 13, 2000 · N509DA · Boeing 727232 · Wing, Longeron/Stringer > LT WING TANK TOP SKIN STR 9 CRACKED AT RIB STA 629. REPAIRED PER 57-13-0 PAGE 801 FIG 802. - [SDR DL72L000739](https://openairdocs.org/sdr/DL72L000739.md): Skin · damaged · Apr 11, 2000 · N509DA · Boeing 727232 · Fuselage Main, Plate/Skin > C/W SRM 53-11-0 PERMANENT REPAIR STA 910 LT SIDE. REMOVED 2 HYDRAULIC LINES FOR ACCESS. REMOVED ANGLE PER SRM 53-10-4D STEP 1. REMOVED FASTENERS, CLIP AND FILLER PER SRM 53-10-4D. BEGAN DRILLING PARTS FOR BS 910 PER SRM 53-10-4D. FINISHED DRILLING REPAIR - [SDR DL72L000809](https://openairdocs.org/sdr/DL72L000809.md): Rib · cracked · Apr 10, 2000 · N509DA · Boeing 727232 · Leading Edge Devices > RIB CRACKED AT LWR RADIUS NR 5 SLAT TRACK SUPPORT BOX. REMOVED SLAT TRACK. REMOVED DAMAGE, FABRICATED REPAIR DOUBLER AND FILLER PER MM 57-54-0 FIG 808. OK TO INSTALL DOUBLER AND FILLER. INSTALLED REPAIR PER MM 57-54-0 FIG 808 AND BEGAN INSTALLING SLAT TRAC - [SDR DL72L000281](https://openairdocs.org/sdr/DL72L000281.md): Valve · inoperative · Feb 9, 2000 · N509DA · Boeing 727232 · Cabin Pressure Control System > CABIN ALTITUDE CLIMBS AT 1000-300 FPM. DUCT PRESS INDICATES LT 45 RT 22 PSI. SWAPPED BLEED SOURCE AND CYCLED PACK SWITCH, NO EFFECT. FOUND LEFT PACK FWD PACK VALVE INOP. REPLACED SAME. ALSO, REPLACED RT BLEED HI PRESS VALVE. LEAK CKS GOOD. - [SDR DL72L992286](https://openairdocs.org/sdr/DL72L992286.md): Light · inop · Oct 17, 1999 · N509DA · Boeing 727232 · Emergency Lighting > AFT OVERHEAD AIRSTAIR DOOR EMERGENCY LIGHT INOP. REPLACED LIGHT ASSY AND BATTERY'S OPS NOW OK. - [SDR DL72L992083](https://openairdocs.org/sdr/DL72L992083.md): Skin · cracked · Sep 15, 1999 · N509DA · Boeing 727232 · Fuselage Main, Plate/Skin > LFEC INSPECTION OF THE STRINGER 4R SKIN LAP SPLICE BETWEEN FS 480 & 680 INDICATED A CRACK IN THE LOWER FASTENER ROW OF THE LOWER SKIN. INTERNAL HFEC INSPECTION CONFIRMED A SINGLE CRACK BETWEEN FS 660 & 680. THE CRACK WAS ROUTED OUT OF THE SKIN LAP AND REPAI - [SDR DL72L991467](https://openairdocs.org/sdr/DL72L991467.md): Angle · corroded · Jun 26, 1999 · N509DA · Boeing 727232 · Nacelle/Pylon Structure > ON HUSH-KIT MOD, FOUND RT NR 2 AFT MOUNT CHORD ANGLE CORRODED BEYOND MFG SPECS. REPLACED RT CHORD ANGLE WITH ONE OF NEW MFG. - [SDR DL72L991376](https://openairdocs.org/sdr/DL72L991376.md): Wire · damaged · Jun 17, 1999 · N509DA · Boeing 727232 · Electrical Power System Wiring > ON HUSH-KIT MOD, FOUND NUMEROUS LONGITUDINAL SPLITS ON INSULATION OF ALL 3 GEN FEEDER CABLES IN MID PYLON AREA. REPLACED CABLES FROM SPLICES IN RT 48 SEC TO FIREWALL DISCONNECT WITHNEW TYPE CABLES BMS 13-58 DL P/N 012210733 PER BOEING SERVICE LETTER 727-SL-24 - [SDR DL72L991375](https://openairdocs.org/sdr/DL72L991375.md): Wire · damaged · Jun 17, 1999 · N509DA · Boeing 727232 · Electrical Power System Wiring > ON HUSH-KIT MOD, FOUND NUMEROUS LONGITUDINAL SPLITS ON INSULATION OF ALL 3 GEN FEEDER CABLES IN MID PYLON AREA. REPLACED CABLES FROM SPLICES IN LT 48 SEC TO FIREWALL DISCONNECT WITHNEW TYPE CABLES BMS 13-58 D. P/N 012210733 PER BOEING SERVICE LETTER 727-SL-2 - [SDR DL72L990798](https://openairdocs.org/sdr/DL72L990798.md): Power Supply · inoperative · Apr 11, 1999 · N509DA · Boeing 727232 · Emergency Lighting > EMERGENCY ESCAPE PATH LIGHTING FROM ROW 27 BACK WAS INOP. FOUND SHORTED WIRE AT FLOOR DISCONNECT. REPAIRED WIRING AND REPLACED BATTERY POWER SUPPLY. - [SDR DL72L990788](https://openairdocs.org/sdr/DL72L990788.md): Lens · missing · Apr 11, 1999 · N509DA · Boeing 727232 · Emergency Lighting > EMERGENCY TRACK LIGHTING 10C MISSING BULB/FROM 27 TO REAR OF ACFT EMERGENCY TRACK LIGHTING INOP. REPAIRED SHORTED WIRE IN FLOOR AND RELAMPED 10C. - [SDR DL72L990420](https://openairdocs.org/sdr/DL72L990420.md): Skin · corroded · Feb 26, 1999 · N509DA · Boeing 727232 · Fuselage Main, Plate/Skin > SEVERAL EXISTING SKIN DOUBLER REPAIRS WERE LOCATED ON THE BELLY SKIN PANEL BETWEEN STRINGERS 26L & 26R AND BETWEEN FS 1010 AND 1080. THE REPAIRS WERE FOR CORROSION CUTOUTS. TO IMPROVE THE CONDITION OF SKIN AND ELIMINATE ADDITIONAL CORROSION, THE SKIN WAS CUT - [SDR DL72L990376](https://openairdocs.org/sdr/DL72L990376.md): Bulkhead Chord · corroded · Feb 10, 1999 · N509DA · Boeing 727232 · Fuselage Miscellaneous Structure > FOUND DURING MV2 CORROSION VISIT NRC 221, CORROSION ON LOWER CHORD OF STA 950 BULKHEAD JUST O/B OF STR 29 RT. REPAIRED PER SRM 53-10-9 FIG 12. - [SDR DL72L990344](https://openairdocs.org/sdr/DL72L990344.md): Web · cracked · Jan 10, 1999 · N509DA · Boeing 727232 · Fuselage Miscellaneous Structure > ROUTED OUT.125 INCH CRACK IN 48 SECTION TORQUE BOX WEB RT SIDE AT LIGHTNING HOLE FWD OF STA 1243 PER M/M 53-11-0 PG 828. - [SDR DL72L981922](https://openairdocs.org/sdr/DL72L981922.md): Battery Pack · discharged · Sep 15, 1998 · N509DA · Boeing 727232 · Emergency Lighting > LAYOVER FOUND L-2 AND R-2 SLIDE EMERGENCY LIGHTS INOP. REPLACED M983 SLIDE LIGHT BATTERY PACK, OPN CKS OK. - [SDR DL72L981750](https://openairdocs.org/sdr/DL72L981750.md): Skin · corroded · Aug 24, 1998 · N509DA · Boeing 727232 · Fuselage Main, Plate/Skin > THE FUSELAGE SKIN AT FS 990 AND STRINGER 28R WAS FOUND CUTOUT TO REMOVE CORROSION OVER A 2 X 3 AREA. THE CUTOUT WAS ADJACENT TO AN EXISTING REPAIR INSTALLED TO REPAIR ANOTHER SKIN CORROSION CUTOUT. THE EXISTING REPAIR WAS REMOVED AND A NEW EXTERNAL ALUMINUM - [SDR DL72L981749](https://openairdocs.org/sdr/DL72L981749.md): Skin · corroded · Aug 24, 1998 · N509DA · Boeing 727232 · Fuselage Main, Plate/Skin > THE FUSELAGE SKIN AT FS 1055 AND STRINGER 29L WAS FOUND WITH CORROSION RESULTING IN A 2 X 3 CUTOUT TO REMOVE THE DAMAGE. THE CUTOUT WAS ADJACENT TO TWO OTHER EXISTING SKIN REPAIRS. ONE OF THE EXISTING REPAIRS WAS REMOVED AND REPLACED WITH A NEW EXTERNAL ALUM - [SDR DL72L981748](https://openairdocs.org/sdr/DL72L981748.md): Skin · corroded · Aug 24, 1998 · N509DA · Boeing 727232 · Fuselage Main, Plate/Skin > THE SKIN WAS FOUND CORRODED BETWEEN FS 480 AND 500 AT STRINGER 28R. THE CORROSION WAS CUTOUT RESULTING IN A 16.75 LONG X 3.25 WIDE CUTOUT. THE CUTOUT WAS REPAIRED WITH AN EXTERNAL ALUMINUM DOUBLER, INSTALLED PER PROCEDURES OUTLINED IN B727 SRM 53-30-3, FIG 3 - [SDR DL72L981760](https://openairdocs.org/sdr/DL72L981760.md): Spar · cracked · Aug 21, 1998 · N509DA · Boeing 727232 · Elevator, Spar/Rib > THE REAR SPAR OF THE RT ELEVATOR WAS FOUND WITH A.1875 INCH TYPICAL CRACK AT CENTER HINGE BRACKET SHEAR PLATE. THE CRACK WAS STOP DRILLED PER THE REQUIREMENTS OF AD 96-06-05 AND S/B 727-55-0089. THE REPAIR WAS DOCUMENTED PER ER/A 365499-14AD WHICH ESTABLISH - [SDR DL72L981718](https://openairdocs.org/sdr/DL72L981718.md): Stringer · corroded · Aug 20, 1998 · N509DA · Boeing 727232 · Fuselage Main, Longeron/Stringer > STRINGER 29R FS 995 CORRODED BEYOND LIMITS. REPAIRED PER SRM 53-10-11 FIG 3. - [SDR DL72L981717](https://openairdocs.org/sdr/DL72L981717.md): Web · cracked · Aug 20, 1998 · N509DA · Boeing 727232 · Fuselage Miscellaneous Structure > FOUND ON F-1 LETTER CHECK NRC NR 61, TWO 1 INCH CRACKS, LOWER TORQUE BOX LT WEB UPPER EDGE ABOVE LIGHTENING HOLE STA 1223. INSTALLED DOUBLER PER M/M 53-11-0 PG 832. - [SDR DL72L980780](https://openairdocs.org/sdr/DL72L980780.md): Battery Pack · discharged · Apr 9, 1998 · N509DA · Boeing 727232 · Emergency Lighting > AFT LT OVERWING EMER SLIDE LIGHT INOP. REPLACED BATT, OPS OK. - [SDR DL72L980232](https://openairdocs.org/sdr/DL72L980232.md): Skin · dented · Jan 21, 1998 · N509DA · Boeing 727232 · Fuselage Main, Plate/Skin > FUSELAGE SKIN FS 1205-1215, STRINGER 23R AND REPAIR FOR SKIN DENTS. THE FUSELAGE SKIN WAS FOUND WITH TWO DENTS BETWEEN FS 1205 AND 1215 JUST ABOVE STRINGER 23R. THE DENTS WERE CUTOUT AND AN EXTERNAL SHEET METAL DOUBLER WAS INSTALLED PER ER/A 363791-14. - [SDR DL72L972166](https://openairdocs.org/sdr/DL72L972166.md): Charger · inoperative · Oct 23, 1997 · N509DA · Boeing 727232 · Emergency Lighting > EMERGENCY EXIT LIGHTS INOP. REPLACED BATTERY PACK AND CHARGER. - [SDR DL72L971860](https://openairdocs.org/sdr/DL72L971860.md): Batteries · discharged · Sep 23, 1997 · N509DA · Boeing 727232 · Emergency Lighting > IRREG EMERGENCY LIGHT ABOVE BOTTOM STEP OF THE AIRSTAIRS INOP. REPLACED BATTERIES. - [SDR DL72L971859](https://openairdocs.org/sdr/DL72L971859.md): Battery Pack · discharged · Sep 23, 1997 · N509DA · Boeing 727232 · Emergency Lighting > IRREG/ LEFT WING, FWD EXTERIOR LIGHT FOR OVERWING ESCAPE PATH INOP. REPLACED BATTERY PACK M1086. - [SDR DL72L971760](https://openairdocs.org/sdr/DL72L971760.md): Battery · discharged · Sep 8, 1997 · N509DA · Boeing 727232 · Emergency Lighting > LEFT FWD EXTERIOR EMERGENCY LIGHT FOR OVERWING ESCAPE PATH INOP. REPLACED BATTERY PACK. Next page: https://openairdocs.org/deregistered/N509DA-2013-04-02/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 = 'N509DA' AND deregistration_id = 'N509DA-2013-04-02' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N509DA-2013-04-02/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.