BELL 427 Model Guide
BELL 427 · Model Guide
Overview
BELL 427 is a Bell turboshaft helicopter. Family registry data show up to 7 passengers, up to 350 nm range and up to 138 kt cruise. The one example in the documents, N427PG (SN 56019), has two PW207D engines and 2,093.8 airframe hours at 15-Nov-2023. The library record lists it as piston, which conflicts with the other data, so verify the engine type.
- Family-level maxima: 7 passengers, 350 nm range, 138 kt cruise, 16000 ft service ceiling. These are not figures for a specific aircraft.
- The example airframe (SN 56019) had 4,368 landings and 2,093.8 hours at 15-Nov-2023. Ask for the same status report for any aircraft you consider.
- Check compliance with ASB 427-21-44 (transmission oil check valve) and ASB 427-11-35 (servo clevis). Both cover early serial numbers.
- The maintenance program has 50, 150, 300 and 600 hour inspections. Conditional inspections apply after events such as hard landings or overspeed.
Summary written by AI from the source document. Check the original before relying on it. See which parts of Sprinkle are written by AI.
Reference only, not for flight. Use the current approved manual for your aircraft. See terms, section 5.
Document
Source
Copy found at sprinkle.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type ·
- Model Guide
- Year ·
- 2026
- File size ·
- 47 KB
- Copy found at ·
- sprinkle.com
Specifications & performance
Extracted from this document.
Performance
- Family max range (nm) ·
- 350
- Family max cruise speed (kt) ·
- 138
- Family max service ceiling (ft) ·
- 16,000
Weight & balance
- Increased gross weight kit (lb) ·
- 6,550
How many people can a BELL 427 carry?
Family registry data for the BELL 427 show up to 7 passengers. This is a family-level maximum, not a confirmed figure for a specific aircraft. Check the aircraft's own configuration and flight manual.
What performance can I expect from a BELL 427?
Registry data for the BELL 427 family show up to 350 nm range, up to 138 kt cruise and a service ceiling up to 16000 ft. These are family maximums. The documents give no figures for a specific variant.
Which service bulletins matter on a BELL 427?
For the BELL 427, ASB 427-21-44 covers the transmission oil check valve and ASB 427-11-35 covers hydraulic servo clevis assemblies. Both apply to early serial numbers, so ask for logbook proof of compliance.
What is the BELL 427 Model Guide?
The BELL 427 Model Guide is a model guide for the BELL 427, dated 2026.
What year was the BELL 427 Model Guide published?
The BELL 427 Model Guide — the BELL 427 model guide on file — is dated 2026.
Common. More common than 64% of the aircraft models we track.
Most owners only have the POH. Here's the essential set for the BELL 427.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins on file
- Type Certificate (TCDS)
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In this document
Maintenance program
The status report for N427PG shows periodic inspections at 50, 150, 300 and 600 hours, plus a 1200 hour / 24 month component inspection. Calendar limits also apply: many items are due every 12 months. Servicing and lubrication items recur at 50, 300 and 600 hours. Ask for a current status report that shows what is due and what is overdue.
Service bulletins to verify
ASB 427-21-44 (Revision A) covers the transmission oil check valve, part number 209-062-520-001, on serial numbers 56001 through 56084, 58001 and 58002. Valves marked CORONA CA without a TQL marking are measured. A valve that fails is replaced. ASB 427-11-35 covers hydraulic servo clevis assemblies on serial numbers 56001 through 56077, 58001 and 58002. Confirm both are logged as complied with.
Weight and event history
The status report lists an optional Increased Gross Weight kit of 6550 lbs (TB 427-02-08). Check whether it is fitted. It also lists conditional inspections for hard landing, sudden stoppage, main rotor overspeed (above 104% power on, or 107% power off), overtorque, lightning, engine one-engine-inoperative events and compressor stall. Review the logbook for any of these.
Summary written by AI from the source document. Check the original before relying on it. See which parts of Sprinkle are written by AI.
Safety notes
- If the transmission oil check valve under ASB 427-21-44 is not replaced, the bulletin requires re-inspection every 25 flight hours or 30 days. A cracked valve must be replaced before next flight.
- Any main rotor overspeed, overtorque, hard landing, lightning strike or sudden stoppage needs its conditional inspection. Look for evidence in the logs.
- The library record says piston, but the documents show PW207D turboshaft engines. Confirm engine type and records before purchase.
Summary written by AI from the source document. Check the original before relying on it. See which parts of Sprinkle are written by AI.
Full document text
BELL 427 Model Guide BELL 427 is a Bell turboshaft helicopter. Family registry data show up to 7 passengers, up to 350 nm range and up to 138 kt cruise. The one example in the documents, N427PG (SN 56019), has two PW207D engines and 2,093.8 airframe hours at 15-Nov-2023. The library record lists it as piston, which conflicts with the other data, so verify the engine type. • Family-level maxima: 7 passengers, 350 nm range, 138 kt cruise, 16000 ft service ceiling. These are not figures for a specific aircraft. • The example airframe (SN 56019) had 4,368 landings and 2,093.8 hours at 15-Nov-2023. Ask for the same status report for any aircraft you consider. • Check compliance with ASB 427-21-44 (transmission oil check valve) and ASB 427-11-35 (servo clevis). Both cover early serial numbers. • The maintenance program has 50, 150, 300 and 600 hour inspections. Conditional inspections apply after events such as hard landings or overspeed. Maintenance program The status report for N427PG shows periodic inspections at 50, 150, 300 and 600 hours, plus a 1200 hour / 24 month component inspection. Calendar limits also apply: many items are due every 12 months. Servicing and lubrication items recur at 50, 300 and 600 hours. Ask for a current status report that shows what is due and what is overdue. Service bulletins to verify ASB 427-21-44 (Revision A) covers the transmission oil check valve, part number 209-062-520-001, on serial numbers 56001 through 56084, 58001 and 58002. Valves marked CORONA CA without a TQL marking are measured. A valve that fails is replaced. ASB 427-11-35 covers hydraulic servo clevis assemblies on serial numbers 56001 through 56077, 58001 and 58002. Confirm both are logged as complied with. Weight and event history The status report lists an optional Increased Gross Weight kit of 6550 lbs (TB 427-02-08). Check whether it is fitted. It also lists conditional inspections for hard landing, sudden stoppage, main rotor overspeed (above 104% power on, or 107% power off), overtorque, lightning, engine one-engine-inoperative events and compressor stall. Review the logbook for any of these. Safety notes: • If the transmission oil check valve under ASB 427-21-44 is not replaced, the bulletin requires re-inspection every 25 flight hours or 30 days. A cracked valve must be replaced before next flight. • Any main rotor overspeed, overtorque, hard landing, lightning strike or sudden stoppage needs its conditional inspection. Look for evidence in the logs. • The library record says piston, but the documents show PW207D turboshaft engines. Confirm engine type and records before purchase.