Boeing may see hundreds of veteran engineers retire this fall ahead of a pension adjustment that will dramatically slash the payouts to those who choose to take the money in a single lump sum. The interest rates used to determine the lump sum will be updated in November, after which one 35-year Boeing employee calculates that his payout will be cut by more than $200,000. ... Matt Kempf, senior director for compensation and retirement for SPEEA, estimates around 600 or 700 experienced local engineers and technical staff close to retirement will have to at least consider an early exit.