# Service difficulty reports: N985HA A list on [N985HA](https://openairdocs.org/aircraft/N985HA.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR HNAA0600008](https://openairdocs.org/sdr/HNAA0600008.md): Switch · intermittent · Jan 31, 2006 · N985HA · Dhav DHC8201 · Propeller Controlling System > ON CLIMBOUT NR 2 ENGINE TORQUE FLUCTUATED TO APPROX 105 PERCENT, PROP RPM BETWEEN 930 AND 980. REDUCED POWER AND ENGINE STABILIZED TO NORMAL. REMOVED AND REPLACED MICRO SWITCH 6121-S10. - [SDR HNAA0600007](https://openairdocs.org/sdr/HNAA0600007.md): Beta Lockout · malfunctioned · Jan 27, 2006 · N985HA · Dhav DHC8201 · Propeller Controlling System > ON TAKEOFF NR 2 ENGINE SURGING, DISABLED AUTO FEATHER SURGE CONTINUED. NOTED RPM CYCLING JUST UNDER 1000 RPM RETARDED NR 2 CONDITION LEVER SET RPM'S AT APPROXIMATELY 900 RPM'S. ALL OTHER ENGINE PARAMETERS NORMAL. DEACTIVATED BETA LOCKOUT PER APPENDIX 61-4. - [SDR HNAA0500010](https://openairdocs.org/sdr/HNAA0500010.md): Fuel Control · malfunctioned · Feb 15, 2005 · N985HA · Dhav DHC8201 · Fuel Controlling System > AFTER T/O NR 1 ENGINE HAD NO RESPONSE TO POWER LEVER MOVEMENT. CYCLING ECU W/ PWR LEVER MOVEMENT HAD NO CHANGE TO RESPONSE. DURING THIS SEQ, TQ HAD DROPPED FROM 105 TO 52 PERCENT AND STAYED UNCHANGED. ON APPROACH ENGINE RETURNED TO NORMAL OPS. REMOVED AND - [SDR HNAA0400086](https://openairdocs.org/sdr/HNAA0400086.md): Pseu · inoperative · Sep 21, 2004 · N985HA · Dhav DHC8201 · Landing Gear Door Retract Section > AFTER GEAR RETRACTION ALL GEAR DOOR INDICATED OPEN AND LF MAIN GEAR UNSAFE LIGHT ILLUM. PERFORMED ALT GEAR EXT AND RETURNED TO FIELD. INSP GEAR, NO DEFECTS NOTED. FOUND PSEU FAULTS WITH ALL GEAR DOOR AND LF MAIN GEAR. REMOVED AND REPLACED PSEU AND PERFORMED - [SDR HNAA0400042](https://openairdocs.org/sdr/HNAA0400042.md): Warning Light · illuminated · Apr 24, 2004 · N985HA · Dhav DHC8201 · Door Warning System > AIRCRAFT LANDED 400 LBS OVER WEIGHT DUE TO RETURN TO FIELD, SEE ITEM ONE FOR MORE INFO. "LAV SERVICE DOOR POPPED OPEN." FERRIED AIRCRAFT TO SALISBURY FOR HARD LANDING INSPECTION AS PER POH 4.37.0 AND MM 05-50-00. SBY MAINTENANCE PERFORMED HARD LANDING GEAR INS - [SDR HNAA0400036](https://openairdocs.org/sdr/HNAA0400036.md): Selector Valve · weak · Apr 10, 2004 · N985HA · Dhav DHC8201 · Landing Gear Retraction/Extension System > LANDING GEAR WILL NOT RETRACT AFTER T/O, RETURN TO FIELD, GEAR WAS CONFIRMED DOWN, INSPECTED GEAR, L/G INHIBIT SWITCH AND L/G ALTERNATE DOORS, ALL INSP NORMAL, R&R PSEU SAME BITE CODES INDICATED BITE CODE 40 28 VDC POWER CHECKED ALL POWER INTO PSEU AND GROUNDS - [SDR HNAA0300089](https://openairdocs.org/sdr/HNAA0300089.md): Autofeather Sys · malfunctioned · Dec 28, 2003 · N985HA · Dhav DHC8201 · Propeller Feathering/Reversing > AUTOFEATHER FAILS TO ARM ON TAKEOFF. MECHANIC TRIMS ENGINES AND AUTO FEATHER ARMS AT 83-85 TQ, SHUT DOWN ENGINE POWER, DOWN UP AND NEXT ENGINE RUN, AUTO FEATHER REVERTS TO ARMING AT 100-103 TQ. AUTOFEATHER FAILED TO ARM ON TAKE OFF ROLL AGAIN. MECHANIC PRE - [SDR HNAA0300088](https://openairdocs.org/sdr/HNAA0300088.md): Filter · bypassing · Dec 21, 2003 · N985HA · Dhav DHC8201 · Aircraft Fuel Filter/Strainer > NUMBER 2 ENGINE FUEL FILTER BYPASS CAUTION LIGHT ILLUMINATED ON TAKEOFF ROLL. TAKEOFF ABORTED. REMOVED AND REPLACED HP FILTER AND SWITCH. REPAIRED BROKEN WIRE AT SWITCH C/P, OPS CHECK, LEAK CHECK GOOD. - [SDR HNAA0300080](https://openairdocs.org/sdr/HNAA0300080.md): Control Rod · broken · Dec 5, 2003 · N985HA · Dhav DHC8201 · Landing Gear Door Retract Section > LT AFT GEAR DOOR DID NOT CLOSE AFTER GEAR RETRACTION. - [SDR HNAA0300035](https://openairdocs.org/sdr/HNAA0300035.md): Control Unit · defective · Jul 22, 2003 · N985HA · Dhav DHC8201 · Navigation System > WHILE IN RANGE, UNS FAILED AND WAS FOLLWED BY SMOKE ALL AROUND UNIT. THE UNIT RE-ILLUMINATED AND WOULD NOT RESPOND TO OFF SWITCH. F/D FAILED, NAV AND A/P IND LIGHTS FLASHED ALONG WITH RADAR. CAPTAINS ADI BECAME ERRONEOUS. REMOVED UNS UNIT TO INSPECT FOR PO - [SDR HNAA0200064](https://openairdocs.org/sdr/HNAA0200064.md): Battery Pack · discharged · Sep 14, 2002 · N985HA · Dhav DHC8201 · Emergency Lighting > EMERGENCY EXIT RED LIGHTS INOP FROM ROW 2 THROUGH 4 AND ROW 1. FOUND BROKEN WIRES IN ASSY AND DEAD BATERIES. REPLACED ALL SIX EMERGENCY LIGHT BATTERY PACKS AND REPAIRED WIRING AS NCESSARY, OPS CHECK GOOD. - [SDR HNAA0200051](https://openairdocs.org/sdr/HNAA0200051.md): Contactor · intermittent · Aug 7, 2002 · N985HA · Dhav DHC8201 · Hydraulic System, Auxiliary > WHEN #1 ENGINE WAS SHUTDOWN FOR SINGLE ENGINE TAXI THE #1 HYDRAULIC MAIN AND STANDBY SYSTEMS PRESSURE WENT TO ZERO. CREW HAD TO USE PARKING BRAKE TO STOP A/C. REPLACED CONTACTOR 2421-K2. - [SDR HNAA0100081](https://openairdocs.org/sdr/HNAA0100081.md): Hydraulic Line · Dec 29, 2001 · N985HA · Dhav DHC8201 · Hydraulic System, Main > Number two engine hydraulic pump caution light illuminated, followed with loss of number two system hydraulic fluid. Installed temporary flex line on number 2 hydraulic pressure manifold. No bypass indicators popped and no particals found in case drain filter - [SDR HNAA0100004](https://openairdocs.org/sdr/HNAA0100004.md): Wire · burned · Jan 23, 2001 · N985HA · Dhav DHC8201 · APU Controls > ON STARTING NR 2 ENGINE THERE WAS AN ELECTRICAL SMOKE SMELL IN THE AIRCRAFT. FOUND APU POWER CABLES AT FORWARD END OF 2429-TB2 BURNED AWAY FROM THE TERMINAL BLOCK. INSULATED AND SECURED CABLES AND MEL APU SYSTEM. - [SDR HNAA0000076](https://openairdocs.org/sdr/HNAA0000076.md): Fuel Control · failed · Nov 5, 2000 · N985HA · Dhav DHC8201 · Fuel Controlling System > NR 1 ENGINE SHUTDOWN SHORTLY AFTER TAKEOFF. AIRCRAFT RETURNED TO THE FIELD. REPLACED MFC AND FUEL PUMP. ALSO FOUND LOOSE B-NUT ON FLOW DIVIDER. TIGHTENED B-NUT. - [SDR HNAA0000075](https://openairdocs.org/sdr/HNAA0000075.md): Smoke Detector · malfunctioned · Oct 27, 2000 · N985HA · Dhav DHC8201 · Smoke Detection > SMOKE WARNING LIGHT ILLUMINATED IN FLIGHT. INSPECTED BAG BAY, NO SMOKE NOTED. PART WAS REMOVED AND REPLACED ON 30-OCT-2000. - [SDR HNAA0000058](https://openairdocs.org/sdr/HNAA0000058.md): Controller · malfunctioned · Aug 7, 2000 · N985HA · Dhav DHC8201 · Propeller Feathering/Reversing > DURING TAKEOFF ROLL, NR 2 PROPELLER FEATHERED. CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE COULD NOT DUPLICATE THE DISCREPANCY. INSPECTED AND CLEANED THE TQ SENSOR AND TSCU CONNECTORS AND PERFORMED GROUND RUN AND HIGH SPEED TAXI TESTS. ## 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 = 'N985HA' AND registry_match = 'registration' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/aircraft/N985HA/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.