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Piper PA-34 Seneca II Model Guide

Piper PA-34 Seneca II · Model Guide

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Overview

The Piper PA-34 Seneca II is a twin-engine piston airplane built from 1975 to 1981, with 4 to 7 seats. The handbooks list two Continental TSIO-360 engines of 200 hp each, constant-speed full-feathering propellers, retractable tricycle gear and 93 usable gallons of fuel. No range or cruise figures were supplied, so none are quoted here.

  • Two Continental TSIO-360 engines, 200 hp each at sea level, with full-feathering props. Fuel is 100 green or 100LL blue; 93 gal usable.
  • Max takeoff weight is 4570 lbs in the 1976 handbook. A 1980 handbook lists 4407 lbs, so confirm the figure for the specific serial number.
  • The accident reports centre on landing gear. Check nose and main gear downlocks, linkage lubrication and the electric hydraulic pump.
  • AD 86-17-01 required ammeter replacement on serials 34-7570001 to 34-8170092. Confirm it was done.

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

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Document details

Type
·
Model Guide
Year
·
2026
File size
·
51 KB
Copy found at
·
sprinkle.com

Specifications & performance

Extracted from this document.

Specifications

Usable fuel (gal)
·
93
Fuel capacity (gal)
·
98
Engine power 12000 ft (hp)
·
215
Engine power sea level (hp)
·
200
Propeller diameter max (in)
·
76
Propeller diameter min (in)
·
75

V-speeds

DOWNWIND_KTS
·
98
CRUISE_CLIMB_KTS
·
102
FINAL_APPROACH_KTS
·
87
BEST_RATE_CLIMB_KTS
·
89
BEST_ANGLE_CLIMB_KTS
·
76
GEAR_EXTENDED_MAX_KTS
·
129

Weight & balance

Baggage aft max (lb)
·
100
Max useful load (lb)
·
1,747
Max landing weight (lb)
·
4,342
Max takeoff weight (lb)
·
4,570
Baggage forward max (lb)
·
100
Max zero fuel weight (lb)
·
4,000
Standard empty weight (lb)
·
2,823
About this document
What engines does the Piper PA-34 Seneca II have?

The Piper PA-34 Seneca II handbooks list two Continental TSIO-360E or TSIO-360EB engines. Each is rated at 200 hp at sea level and 215 hp at 12,000 ft. They are six-cylinder, direct-drive, air-cooled engines.

How much fuel does the Piper PA-34 Seneca II carry?

The Piper PA-34 Seneca II carries 98 gallons total and 93 gallons usable in four wing tanks. The minimum grade is 100 green or 100LL blue.

What are the key speeds for the Piper PA-34 Seneca II?

The checklist for the Piper PA-34 Seneca II gives best rate of climb as 89 KIAS and best angle as 76 KIAS. Normal rotation is at 66 to 71 KIAS. The landing gear may be extended up to 129 KIAS, and final approach is 87 KIAS.

Which airworthiness directive should I check on a Piper PA-34 Seneca II?

For the Piper PA-34 Seneca II, check AD 86-17-01, which covers serials 34-7570001 through 34-8170092. It required replacing the ammeter with kit 765-186 within 50 hours time-in-service. Confirm in the logbooks that this was done.

What is the Piper PA-34 Seneca II Model Guide?

The Piper PA-34 Seneca II Model Guide is a model guide for the Piper PA-34 Seneca II, dated 2026.

What year was the Piper PA-34 Seneca II Model Guide published?

The Piper PA-34 Seneca II Model Guide — the Piper PA-34 Seneca II model guide on file — is dated 2026.

Documentation completeness
5/7

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In this document

Engines, props and fuel

The 1976 and 1980 handbooks list two six-cylinder, air-cooled Continental TSIO-360E or TSIO-360EB engines, 200 hp at sea level and 215 at 12,000 ft, with a rated speed of 2575 rpm. Props are Hartzell or McCauley, constant-speed and full-feathering. A Hartzell three-blade propeller STC exists for serial 34-7570001 and up. Fuel is 98 gal total, 93 usable.

Weights and loading

The 1976 handbook gives a standard empty weight of 2823 lbs and a maximum useful load of 1747 lbs. It also lists a maximum zero fuel weight of 4000 lbs, so any weight above that must be fuel. Each baggage compartment, forward and aft, is limited to 100 lbs. These values are approximate and vary between airplanes, so ask for the actual weighing.

Landing gear: what to check

The gear is electro-hydraulic with an emergency free-fall extension. AAIB reports on Seneca IIs describe a fatigued nose-gear downlock bolt, a mis-rigged nose downlock spring link, and a left main downlock stiffened by corrosion and poor lubrication. In the last case the electric pump had burnt out. Check the free-fall test, the green-light indications and the maintenance records.

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

  • AD 86-17-01: replace the ammeter with kit 765-186 per Piper Service Bulletin 811A, to prevent cockpit smoke and possible complete electrical failure.
  • A Seneca II nose gear collapsed during taxi after a repair that fitted a second-hand downlock spring link. Verify the rigging after any gear repair.
  • Crossfeed is for cruise only. The handbook says not to select it on both engines, and the fuel selector for the inoperative engine should be off.

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

Piper PA-34 Seneca II Model Guide The Piper PA-34 Seneca II is a twin-engine piston airplane built from 1975 to 1981, with 4 to 7 seats. The handbooks list two Continental TSIO-360 engines of 200 hp each, constant-speed full-feathering propellers, retractable tricycle gear and 93 usable gallons of fuel. No range or cruise figures were supplied, so none are quoted here. • Two Continental TSIO-360 engines, 200 hp each at sea level, with full-feathering props. Fuel is 100 green or 100LL blue; 93 gal usable. • Max takeoff weight is 4570 lbs in the 1976 handbook. A 1980 handbook lists 4407 lbs, so confirm the figure for the specific serial number. • The accident reports centre on landing gear. Check nose and main gear downlocks, linkage lubrication and the electric hydraulic pump. • AD 86-17-01 required ammeter replacement on serials 34-7570001 to 34-8170092. Confirm it was done. Engines, props and fuel The 1976 and 1980 handbooks list two six-cylinder, air-cooled Continental TSIO-360E or TSIO-360EB engines, 200 hp at sea level and 215 at 12,000 ft, with a rated speed of 2575 rpm. Props are Hartzell or McCauley, constant-speed and full-feathering. A Hartzell three-blade propeller STC exists for serial 34-7570001 and up. Fuel is 98 gal total, 93 usable. Weights and loading The 1976 handbook gives a standard empty weight of 2823 lbs and a maximum useful load of 1747 lbs. It also lists a maximum zero fuel weight of 4000 lbs, so any weight above that must be fuel. Each baggage compartment, forward and aft, is limited to 100 lbs. These values are approximate and vary between airplanes, so ask for the actual weighing. Landing gear: what to check The gear is electro-hydraulic with an emergency free-fall extension. AAIB reports on Seneca IIs describe a fatigued nose-gear downlock bolt, a mis-rigged nose downlock spring link, and a left main downlock stiffened by corrosion and poor lubrication. In the last case the electric pump had burnt out. Check the free-fall test, the green-light indications and the maintenance records. Safety notes: • AD 86-17-01: replace the ammeter with kit 765-186 per Piper Service Bulletin 811A, to prevent cockpit smoke and possible complete electrical failure. • A Seneca II nose gear collapsed during taxi after a repair that fitted a second-hand downlock spring link. Verify the rigging after any gear repair. • Crossfeed is for cruise only. The handbook says not to select it on both engines, and the fuel selector for the inoperative engine should be off.