- Registered owner
- Air Methods LLC
- Location
- Greenwood Village, CO
- Owner type
- LLC
- Serial number
- 53144
- Year built
- 1997
- Type
- Rotorcraft
- Engine
- Turbo-shaft
- Airworthiness
- Standard, normal
- Airworthiness date
- May 27, 1997
- Certificate issued
- July 11, 2002
- Expires
- October 31, 2027
- Mode S code
- AC9A6D
From the FAA registry file of October 24, 2026. The registry lists only the engine series, so ADs for every Allison 250-C20 model are included below.
On this page
Airworthiness directives that may apply · 65
Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.
| 1972 | 1 |
|---|---|
| 1973 | 1 |
| 1974 | 1 |
| 1977 | 2 |
| 1979 | 1 |
| 1981 | 1 |
| 1982 | 2 |
| 1984 | 1 |
| 1989 | 1 |
| 1994 | 1 |
| 1996 | 1 |
| 1998 | 3 |
| 1999 | 5 |
| 2000 | 6 |
| 2001 | 5 |
| 2002 | 5 |
| 2003 | 3 |
| 2004 | 1 |
| 2005 | 4 |
| 2006 | 2 |
| 2007 | 1 |
| 2008 | 1 |
| 2009 | 4 |
| 2011 | 2 |
| 2012 | 4 |
| 2013 | 5 |
| 2014 | 1 |
| 2015 | 3 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 2 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 2 |
See all 89 ADs
Information bulletins that may apply · 7
Advisory, not mandatory.
Airframe · Bell 407
SAIB SW-15-20Air Conditioning System WiringSAIB SW-12-45Garmin Model 400W/500W Series GPS-WAAS Navigation SystemSAIB SW-10-42R1Emergency Float KitsSAIB SW-08-42Emergency Float with Liferaft Kits (kits)SAIB SW-05-70SAIB SW-04-92Engine · Allison 250-C20 series
SAIB CE-01-10Historical bulletins · 1
NTSB investigations
No NTSB investigations matched to N911ALMatched by N-number and event date, checked against the reported serial number, make and model. Investigations from before this aircraft carried the mark are under Earlier aircraft. Investigations on Bell 407 aircraft
FAA incident reports
No FAA accident or incident reports matched to N911ALMatched by N-number and event date, checked against the reported make and model. Reports from before this aircraft carried the mark are under Earlier aircraft. Reports on Bell 407 aircraft
Service difficulty reports · 11
Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.
SDR QMLA2024122520154Unknown · odorSTRONG SMELL OF FUEL IN THE CABIN DURING ALL PHASES OF FLIGHT. INSPECTED FUEL SYSTEM AND PERFORMED A CHECK FLIGHT BUT THE FUEL SCENT COULD NOT BE DUPLICATED.SDR QMLA2024062520068Servo · noiseLOUD WHINING NOISE COMING FROM ABOVE AND AFT OF THE REAR FORWARD FACING SEATS. IT OCCURRED DURING A CLIMB AT MCP AND 60 KNOTS. AFTER TURNING AROUND AND LOWERING POWER TO RETURN TO BASE, THE NOISE SUBSIDED. REPLACED TR SERVO, RTS.SDR QMLA2023022120008None · usedDURING PATIENT FLIGHT RESTART FAULT AND FADEC DEGRADE LIGHTS ILLUMINATED. RETURNED TO BASE WITH PATIENT. CREW AND PATIENT TRANSPORTED BY AMBULANCE TO ANOTHER AIRCRAFT. REPLACING THE CIT SENSOR INITIALLY FIXED THE PROBLEM BEFORE THE FAILURE IN FLIGHT LATER THASDR QMLA2021090720044Connector · disconnectedACSN 51344 N911AL REPORTED LANDING ON FT MCDOWELL GOLF COURSE DUE TO MAIN TRANSMISSION CHIP LIGHT AND A COMMUNICATION ISSUE. INSPECTED AND CLEANED CHIP DETECTORS, PERFORMED PENALTY GROUND RUN. ONCE CHIP LIGHT ISSUE WAS RESOLVED, TROUBLESHOT COMMUNICATION ISSUSDR QMLA2020052820022Duct · looseDURING CRUISE FLIGHT, CREW AND PATIENT COMPLAINED OF CARBON MONOXIDE POISONING SYMPTOMS INCLUDING LIGHT HEADEDNESS, SLEEPINESS AND HEADACHE. HEATER WAS IN OFF POSITION, BOTH SWITCHES, BUT HEAT AND FUMES WERE COMING FROM HEATER VENT IN AFT COMPARTMENT OF AIRCRASDR QMLA2019112299087Engine · making metalDURING ROUTINE INSPECTION OF ENGINE CHIP DETECTORS FOUND NUMEROUS CHIPS AND DEBRIS ON BOTH UPPER AND LOWER CHIP PLUGS. AMOUNT AND SIZE EXCEEDED ALLOWABLE PER ROLLS ROYCE C47-250 EMM. *** THIS AIRCRAFT REMAINS OOS AT THE TIME OF THIS SUBMISSION TO REPLACE THIS SDR QMLA2015081415072Skin · crackedFOUND CRACK IN UPPER AFT FUSELAGE SKIN NEAR THE UPPER LT LONGERON AS DESCRIBED, THE SUBJECT OF AD2015-05-04 & ASB 407-11-95, TB 407-12-96. DURING THE COMPLIANCE WITH AMC EO-13-5310-EO-212. CRACK IS APPROX 1.5" LONG, STARTING AT THE UPPER LT LONGERON & TRAVELSDR 2A6D2015061011728Duplex Bearing · damagedMAIN TRANSMISSION HAD A CHIP LIGHT ILLUMINATE. MAIN TRANSMISSION WAS SENT TO THE OVERHAUL SHOP. UPON DISASSEMBLY IT WAS DISCOVERED THE DUPLEX BEARING FOR THE GEAR SHAFT ASSEMBLY WAS STALLING & IS THE SOURCE OF METAL CONTAMINATION IN THE TRANSMISSION. APPROXSDR QMLA2015041515029Heater · pilot errorFLIGHT CREW SMELLED HOT PLASTIC IN AFT CABIN AREA WHILE HEATER WAS IN USE. THIS IS AN ELECTRICALLY ACTUATED SYS, OPERATED BY THE PILOT. IF PILOT SELECTED SETTINGS ARE TOO HIGH, THE HEATER CAN RUN VERY HOT TO THE AFT CABIN, SEPARATELY FROM THE COCKPIT, THIS WSDR QMLA2014032614031Support Angle · crackedDURING AN EVENT 2 INSPECTION THE TECHNICIAN, USING VISUAL CRITERIA & A 10X MAGNIFIER, FOUND A CRACK ON THE LT UPPER SUPPORT ANGLE. THE CRACK IS APPROXIMATELY 1.5 INCHES AFT OF THE HORIZONTAL STABILIZER LE.SDR QML201110201111Frame · crackedDURING INSP OF THE TAILBOOM AND ATTACH POINT, CRACKING WAS NOTED IN THE UPPER STARBOARD ATTACH BOLT HOLE OF THE TAILBOOM ATTACH FRAME. PN:206-032-308-121, LOCATED AT STA 231.472. AXIAL STRESS EXERTED AT THIS LOCATION BY TAILBOOM FLEX, OVERTIME, CAUSES WEAKEN
STCs that may be installed · 334
Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do.
See all 334 STCs
Earlier aircraft with this N-number · 1
This aircraft carried N911AL before the one registered now. The FAA can assign a mark to another aircraft once a registration is cancelled.