Operator’s Manual Serial number range
GTH-4016 SR
From s/n 20127 to s/n 20917 but s/n 20584
GTH-4018 SR
From s/n 20173 to s/n 20861 but s/n 20559; 20598; 20623; 20708
With Maintenance Information
Second Edition First Printing Part No. 57.0009.0499
Operator’s Manual Serial number range
GTH-4016 SR
From s/n 20127 to s/n 20917 but s/n 20584
GTH-4018 SR
From s/n 20173 to s/n 20861 but s/n 20559; 20598; 20623; 20708
With Maintenance Information
Second Edition First Printing Part No. 57.0009.0499