# N516AT: Unmanned Systs & Solutions LE1400Z - Status: Valid registration - Airframe: [Unmanned Systs & Solutions LE1400Z](https://openairdocs.org/model/unmanned-systs-solutions-le1400z) (registry code 061018L) - Serial number: 0A04390668 - Type: Rotorcraft - Engine type: Electric - Certificate issued: January 9, 2021 - Expires: January 31, 2028 - Mode S code: A677CB - Registered owner: [At&T Services Inc](https://openairdocs.org/faa-owner/AT%26T%20SERVICES%20INC) - Location: [Overland Park, KS](https://openairdocs.org/faa-place/KS/Overland%20Park) - Owner type: Corporation - Owner's area on the map: 38.9904° N, 94.6782° W: Placed by OpenAirDocs at the center of ZIP code 66204, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=516AT - Page: https://openairdocs.org/aircraft/N516AT From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. ## ADs that may apply (OpenAirDocs): 0 in force ### Matched by airframe (Unmanned Systs & Solutions LE1400Z) None in force. ## Information bulletins (advisory) None matched. ## NTSB investigations None matched to N516AT. ## NTSB investigations on N516AT not matched to an aircraft (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB CHI02LA111](https://openairdocs.org/ntsb/CHI02LA111), Apr 18, 2002: Boeing 757-200 (N516AT), Springfield, MO, no damage. Probable cause: The flightcrew's failure to follow weather avoidance prcedures and their delay in activating the seat belt sign. Factors were the turbulent thunderstorm weather conditions, and the failure of the… ## FAA accident and incident reports None matched to N516AT. ## Reports on N516AT not matched to an aircraft (1) They name N516AT, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [Accident 20020418037339A](https://openairdocs.org/incident/20020418037339A), Apr 18, 2002: Boeing 75723N (N516AT), St Louis, MO. (-23) American trans air, flight 208, enroute from guadalajara, Mexico to chicago, Illinois, (midway), encountered turbulence while detouring around… ## Service difficulty reports None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. ## Service difficulty reports on N516AT not matched to an aircraft (25) They name N516AT, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [SDR AMTA200401424](https://openairdocs.org/sdr/AMTA200401424), Nov 20, 2004: LINE. LEAKING. ON POSTFLIGHT WALKAROUND, FOUND OIL LEAK ON NR 2 IDG. REMOVED AND REPLACED IDG OIL FEED LINE IAW MM. OPS CHECKED NORMAL, NO LEAKS NOTED. - [SDR AMTA200401414](https://openairdocs.org/sdr/AMTA200401414), Nov 16, 2004: SMOKE DETECTOR. ACTIVATED. FWD LAV SMOKE ALARM ACTIVATED BY SMOKE. EXTINGUISHER DID NOT DISCHARGE AND TEMP INDICATOR STILL IN GRAY. CHECKED LAV FLUSH MOTOR, UNDER SINK AREA AND ALSO CHECK - [SDR AMTA200401301](https://openairdocs.org/sdr/AMTA200401301), Oct 21, 2004: WIRE. DISCONNECTED. INTERIOR EGRESS FLOOR LIGHTS INOPERATIVE AT FORWARD CABIN. RE-CONNECT FWD CABIN EGRESS FLOOR LIGHT IAW 33-55-11-3. OPS CHECK GOOD. - [SDR AMTA200401001](https://openairdocs.org/sdr/AMTA200401001), Aug 4, 2004: TRANSMITTER. MALFUNCTIONED. STABILIZER TRIM ON EICAS AND OVERHEAD LIGHT CAME ON PUSH BACK. REMOVED AND REPLACED THE LEFT STAB TRIM LIMIT SWITCH AND POSITION TRANSMITTER PER AMM 27-48-01-4. - [SDR AMTA200400978](https://openairdocs.org/sdr/AMTA200400978), Aug 4, 2004: PCU. MALFUNCTIONED. SPOILER LIGHT ILLUMINATED, EICAS MSG SPOILER DISPLAYED WITH SPOILERS SELECTED DOWN AIRPLANE WAS ON THE GROUND. PER FIM 27-61-00 PCA NR 8 FAULT WAS NOTED ON BITE - [SDR AMTA200400583](https://openairdocs.org/sdr/AMTA200400583), May 22, 2004: CONNECTOR. DISCONNECTED. EMERGENCY EGRESS LIGHT, ROW 35 AFT GALLEY INOPERATIVE. RECONNECTED EGRESS LIGHT AT ROW 35, OPS CHECK OK. - [SDR AMTA200400063](https://openairdocs.org/sdr/AMTA200400063), Jan 21, 2004: BATTERY PACK. INOPERATIVE. FOUND TWO EGRESS LIGHTS OUT AT R2 DOOR. REMOVED AND REPLACED BATTERY PACK POWER SUPPLY AT R2 DOOR PER AMM 33-51-07-2, OPS CHECK GOOD. (M) - [SDR AMTA200301524](https://openairdocs.org/sdr/AMTA200301524), Dec 28, 2003: CIRCUIT CARD. MALFUNCTIONED. STATUS MSG RT ENG OH LP 2. SWAPPED LP 2 CARD WITH THE LP1 CARD ON ENG 2. PERFORMED BITE TEST. NO MESSAGE ON STATUS PAGE OR MECHANIC PAGE. - [SDR AMTA200301241](https://openairdocs.org/sdr/AMTA200301241), Sep 30, 2003: IDG. INOPERATIVE. EICAS MSG GEN DRIVE DISPLAYED GEN DRIVE LIGHT ILLUMINATED AFTER START OF DESCENT. GEN DRIVE DISCONNECTED. REMOVED AND REPLACED LT IDG PER M57-2401, MM 24-11-01 - [SDR A6WA200300844](https://openairdocs.org/sdr/A6WA200300844), Jun 28, 2003: COOLING FAN. MALFUNCTIONED. FLT 102 - EQUIPMENT COOLING OVERHEAT LEGEND ILLUMINATED WITH 'EQ CLG GAN' STATUS MESSAGE. WORKS OK IN ALT MODE. REMOVED AND REPLACED FAN AND FILTER. REF AMM 21- - [SDR AMTA200300596](https://openairdocs.org/sdr/AMTA200300596), May 2, 2003: LIGHT. INOPERATIVE. L1 DOOR EMERGENCY EXIT SLIDE LIGHT INOPERATIVE. REMOVED AND REPLACED LIGHT ASSEMBLY PER MM 335106. OPS CHECK GOOD. (M) - [SDR AMTA200300535](https://openairdocs.org/sdr/AMTA200300535), Apr 21, 2003: WIRE. LOOSE. EMERGENCY EGRESS FLOOR PATH LIGHTING SYSTEM INOPERATIVE FROM ROW 11 TO ROW 13. RECONNECTED LOOSE WIRING TO TERMINAL PER WDM 20. (M) - [SDR AMTA200300344](https://openairdocs.org/sdr/AMTA200300344), Mar 10, 2003: POWER SUPPLY. INOPERATIVE. EMERGENCY LIGHT AT SEAT 26 ABC IS OUT. REMOVED AND REPLACED FUSE TO PIN 16 ON THE MID AFT EMERGENCY POWER SUPPLY AS REQUIRED. OPS CHECK NORMAL. (M) - [SDR AMTA200300306](https://openairdocs.org/sdr/AMTA200300306), Mar 4, 2003: WIRE. DISCONNECTED. EPW WHITE LIGHT, THREE EACH, AT ROWS 30 AND 31 INOPERATIVE. REF ITEM 4 THIS PAGE 558241 FOR ADDITIONAL INFORMATION, ONCE WIRE FOR 32D WAS RECONNECTED WHITE EPL - [SDR AMTA200300305](https://openairdocs.org/sdr/AMTA200300305), Mar 4, 2003: WIRE. DISCONNECTED. EPL RED LIGHT 1 EACH AT ROW 29 INOPERATIVE. FOUND DISCONNECTED EPL WIRE AND 32D, CIRCUIT TO RED LIGHT AT 29 VERIFIED OPERATIVE. (M) - [SDR AMTA200300177](https://openairdocs.org/sdr/AMTA200300177), Feb 4, 2003: BATTERY PACK. INOPERATIVE. EGRESS LIGHTS JUST FORWARD OF RIGHT NR 2 DOOR 1 RED AND 1 SHITE ARE NOT ON DURING CHECK. REMOVED AND REPLACED BATTERY PACK AT R2 OVERHEAD IAW AMM 33-51-07. LIGH - [SDR AMTA200300152](https://openairdocs.org/sdr/AMTA200300152), Jan 28, 2003: BATTERY PACK. DISCHARGED. R2 EXTERIOR EMERGENCY LIGHT INOPERATIVE. CHANGE BATTERY PACK IAW 33-51-07-902-003-001. (M) - [SDR AMTA200300151](https://openairdocs.org/sdr/AMTA200300151), Jan 28, 2003: BATTERY PACK. DISCHARGED. FOUND L1 EXTERIOR EMERGENCY DOOR LIGHT INOPERATIVE. CHANGE BATTERY PACK IAW 33-51-07-902-003-001. (M) - [SDR 2002F01061](https://openairdocs.org/sdr/2002F01061), Nov 26, 2002: GIRT BAR. OBSTRUCTED. DURING GROUND HANDLING, 4L DOOR SLIDE LIGHT, INOPERATIVE. MAINTENANCE FOUND ATTACHMENT POINT FOR SURVIVAL KIT ROPE STUCK UNDER GIRT BAR CAUSING ARM LIGHT TO FAI - [SDR 2002F00998](https://openairdocs.org/sdr/2002F00998), Nov 3, 2002: CONTROLLER. INOPERATIVE. (ORIG-CLOSED) FLIGHT NUMBER 108. DURING CRUISE RT ENGINE LIMITER & RT ENGINE EEC ILLUMINATED. MAINTENANCE TROUBLESHOT PER FIM 73-21-00, PAGE 1, BLOCK 53 "CHANGE - [SDR 2002F00618](https://openairdocs.org/sdr/2002F00618), May 28, 2002: WIRE. SHORTED. FLIGHT NUMBER 535, LEFT SIDE WINDOW EICAS MESSAGE LIGHT ILLUMINATED AS WELL AS LEFT SIDE WINDOW HEAT INOP LIGHT. UNABLE TO RESET IAW QRH PROCEDURE. BOTH L2 & L3 - [SDR 2002F00423](https://openairdocs.org/sdr/2002F00423), Apr 15, 2002: CONTROL VALVE. MALFUNCTIONED. FLIGHT 217, LEFT PACK TEMP EICAS & LEFT PACK INOP LIGHT CAME ON DURING APPROACH. ON & OFF 3 TIMES, CAME ON DURING TAXI IN. MAINTENANCE REMOVED AND REPLACED THE - [SDR 99ZZZM301](https://openairdocs.org/sdr/99ZZZM301), Jan 1, 1999: APU. FAILED. WHILE PERFORMING PREFLIGHT, THE APUT HAD OIL PRESSURE SHUT DOWN (HIGH OIL CONSUMPTION). REMOVED AND REPLACED APU PER MM, OPS CHECKED GOOD. (M) - [SDR 98ZZZM816](https://openairdocs.org/sdr/98ZZZM816), Sep 23, 1998: SLIDE. MALFUNCTIONED. IND - WHILE PERFORMING TASK CARD 25-016-01, "SLIDE DEPLOYMENT FOR L-4 DOOR", THE DOOR ASSIST DID NOT OPEN THE DOOR IN 2-6 SECONDS. HAD TO PUSH THE DOOR OPEN FOR - [SDR 96ZZZX3645](https://openairdocs.org/sdr/96ZZZX3645), Mar 25, 1996: ENGINE. SURGED. PHX - LEFT ENGINE SURGED DURING DECELERATION AT 38,000 FEET. ENGINE OPERATION ABNORMAL AFTER SURGE, ENGINE WAS NOT SHUT DOWN. EGT 30-50 HIGHER THAN RT ENGINE, V ## STCs that may be installed (OpenAirDocs) None matched to this aircraft's models. ## Related - Other Unmanned Systs & Solutions LE1400Z aircraft: https://openairdocs.org/model/unmanned-systs-solutions-le1400z/aircraft.md --- 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.