N424MB

No registry detail on file · not in current registry

Operators of this aircraft

Who operated this tail, and how firmly we know it.

No operator established for this aircraft.

Accident & incident history

No NTSB accidents or incidents on file for this aircraft.

Maintenance disclosures

Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.

26 reports on file, 1995-03-12 – 2011-09-30.

PARTIAL RPM/PWR LOSS; WARNING INDICATION · 2011-09-30 Matched by certificate designator
ATA 7200

Part: ENGINE — POWER LOSS · airframe 10,630 hrs · 40,759 cycles

THE PILOT REPORTED, AFTER PREFLIGHT AND CONFIRMATION CHECKS WERE CONDUCTED, LIFTED TO HOVER. USED THE ENGINE BEEP SWITCH TO SLIGHTLY INCREASE THE NR/N2 RPM TO 100 PERCENT. ON CLIMBOUT REACHING 900 FEET MSL, REDUCED COLLECTIVE TO 50 % ENGINE TORQUE TO ASSESS VISIBILITY IN RAIN AND NOTED NR/N2 DECREASED TO 99 %. THIS OUT OF NORM, PILOT TRIED USING THE BEEP SWITCH TO INCREASE THE NR/N2 BACK TO 100 %. WITH NO RESPONSE TO COMMAND AND BY INCREASING COLLECTIVE TO 60 % TORQUE WITH NO RESPONSE. PILOT ELECTED TO ABORT FLIGHT AND RETURNED TO BASE IAW RFM EMERGENCY INSTRUCTIONS UNDER DROOP COMPENSATION FAILURE.

Source: SDR QMLA2011093011097
Earlier reports · 1995–2002 · 25 reports

2002

NO TEST · 2002-03-23 Unresolved
ATA 2432

Part: BATTERY — DISCHARGED (MAIN)

LEAD ACID BATTERY WILL NOT HOLD A CHARGE. STAYS AT 20 VOLTS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

Source: SDR R7M2002F00017

2001

OTHER · 2001-07-19 Unresolved
ATA 7712

Part: TORQUEMETER — ERRATIC (COCKPIT)

TORQUEMETER INDICATOR INOPERATIVE. NR 1 NEEDLE JUMPS ERRATICALLY. RECEIVED NEW WITH A3 AND A4 CONVERSION KIT. THIS UNIT IS BRAND NEW MANUFACTURE, NOT OVERHAULED OR REPAIRED. REPLACED WITH REPAIRED UNIT CORRECTED PROBLEM. (M)

Source: SDR 2001F00507

1999

OTHER · 1999-08-18 Unresolved
ATA 7720

Part: THERMOCOUPLE — SHORTED (ENGINE)

INTERNAL SHORT. REPLACED THERMOCOUPLE WITH NEW UNIT, CORRECTED PROBLEM. (X)

Source: SDR 20000817SH001
FLUID LOSS · 1999-08-06 Unresolved
ATA 7310

Part: TUBE — LEAKING (FUEL SYSTEM)

TUBE LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

Source: SDR 2000ZZZX774
OTHER · 1999-08-06 Unresolved
ATA 7240

Part: SEAL — WORN (TURBINE SHROUD)

SEAL RING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTIVE PROBLEM.

Source: SDR 2000ZZZX770
FLUID LOSS · 1999-08-06 Unresolved
ATA 7920

Part: TUBE — LEAKING (OIL SYSTEM)

TUBE LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

Source: SDR 2000ZZZX773
OTHER · 1999-08-06 Unresolved
ATA 7240

Part: SEAL — LEAKING (NR 3 BEARING)

SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

Source: SDR 2000ZZZX775
OTHER · 1999-08-06 Unresolved
ATA 7240

Part: SPRING — WORN (TURBINE SECTION)

SPRING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

Source: SDR 2000ZZZX771
OTHER · 1999-08-06 Unresolved
ATA 7250

Part: BLADE — DAMAGED (GAS PRODUCER)

EXCESSIVE GP BLADE TIP RUB. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

Source: SDR 2000ZZZX772

1998

OTHER · 1998-11-05 Unresolved
ATA 6420

Part: BEARING — WORN (TAIL ROTOR)

BEARING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

Source: SDR 99ZZZX892
OTHER · 1998-03-10 Unresolved
ATA 6510

Part: BEARING — WORN (T/R DRIVE)

BEARING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

Source: SDR 98ZZZX1797

1997

FLUID LOSS · 1997-07-24 Unresolved
ATA 7230

Part: SEAL — LEAKED (LT ENG NR 2)

LEFT ENGINE NR 2 BEARING SEAL, UPON INSTALLATION, UNIT LEAKED BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

Source: SDR 98ZZZX1151
OTHER · 1997-07-10 Unresolved
ATA 7714

Part: SPEED PICKUP — FAILED (ENGINE)

SPEED PICKUP UNIT FAILED TO TEST UPON INSTALLATION. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

Source: SDR 97ZZZX5065

1996

OTHER · 1996-05-16 Unresolved
ATA 6230

Part: BELLOWS — TORN (M/R MAST)

BELLOWS IS TORN AROUND CLAMP AND FOLD AREAS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

Source: SDR 96ZZZX5672

1995

OTHER · 1995-08-17 Unresolved
ATA 7250

Part: ROTOR ASSY — BLADE SHIFT (LT ENG TURB)

FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES, 3788.0.

Source: SDR 95ZZZX5381
OTHER · 1995-06-23 Unresolved
ATA 6420

Part: BOLT — WORN (T/R)

BOLT WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

Source: SDR 96ZZZX1666
OTHER · 1995-06-06 Unresolved
ATA 6210

Part: BUSHING — WORN (T/R)

TEFLON LINERS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 8 EACH NEW UNITS, CORRECTED PROBLEM.

Source: SDR 96ZZZX1665
FLUID LOSS · 1995-05-19 Unresolved
ATA 7230

Part: SEAL — LEAKING (NR 2 BEARING)

NR 2 BEARING SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT(S) CORRECTED PROBLEM.

Source: SDR 95ZZZX5271
FLUID LOSS · 1995-05-19 Unresolved
ATA 7250

Part: SEAL — LEAKING (NR 3 BEARING)

NR 3 BEARING SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNITS(S) CORRECTED PROBLEM.

Source: SDR 95ZZZX5270
OTHER · 1995-05-10 Unresolved
ATA 7931

Part: TRANSDUCER — MALFUNCTION (OIL PRESSURE)

OIL PRESSURE FLUCTUATION. REPLACED WITH NEW UNIT(S), CORRECTED PROBLEM.

Source: SDR 95ZZZY0990
OTHER · 1995-05-10 Unresolved
ATA 2430

Part: RELAY — SHORTED (DC SYS)

SUSPECT RELAY HAS INTERNAL SHORT, UPON INSTALLATION UNIT POPS CIRCUIT BREAKER. REPLACED WITH NEW UNIT(S), CORRECTED PROBLEM.

Source: SDR 95ZZZY0967
OTHER · 1995-03-12 Unresolved
ATA 7250

Part: ROTARY ASSY — DISC DAMAGE (GAS PRODUCER)

DISC HAS EXCESSIVE DAMAGE (WARPED CAUSING LOOSE BLADES) RESULTING FROM LAB SEAL ELEMENT RUBBING INTO DISC KNIFE EDGES. THIS LAB SEAL HAS FEWER WELD POINTS AS COMPARED TO THE MORE RECENT SEAL DESIGN. THE LAB SEAL WAS INSTALLED NEW AS A PART OF SB 126 UPGRADE. HERE ARE THE VIBRATION RESULTS OF THE ENGINE TEST CELL RUN AT THE TIME THE ROTOR WAS INSTALLED NEW. DYNR = 0.16, GB-R = 0.21, AD-A = 0.26, PT-R = 0.15. PART TOTAL CYCLES, 1299.4.

Source: SDR 95ZZZX5561
FLUID LOSS · 1995-03-12 Unresolved
ATA 7250

Part: SEAL — LEAKING (NR 3 BEARING)

SEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. ENGINE TOTAL CYCLES, 7,314.4.

Source: SDR 96ZZZX506
OTHER · 1995-03-12 Unresolved
ATA 7230

Part: BEARING — WORN (COMPRESSOR NR 1)

BEARING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. ENGINE TOTAL CYCLES, 7,314.4

Source: SDR 96ZZZX505
OTHER · 1995-03-12 Unresolved
ATA 7250

Part: ROTOR ASSY — BLADE SHIFT (LT ENG TURB)

FAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT NR 7, PLUS 0.008 INCH, NR 10, PLUS 0.008 INCH. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TOTAL CYCLES 4406.5.

Source: SDR 95ZZZX5378